320109720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:718

約数の個数: 256

約数和(自身を含む): 1194393600

約数和(自身を除く): 874283880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 31, 35, 38, 40, 42, 56, 57, 60, 62, 70, 76, 84, 93, 95, 105, 114, 120, 124, 133, 140, 152, 155, 168, 186, 190, 210, 217, 228, 248, 266, 280, 285, 310, 372, 380, 399, 420, 434, 456, 465, 532, 570, 589, 620, 647, 651, 665, 744, 760, 798, 840, 868, 930, 1064, 1085, 1140, 1178, 1240, 1294, 1302, 1330, 1596, 1736, 1767, 1860, 1941, 1995, 2170, 2280, 2356, 2588, 2604, 2660, 2945, 3192, 3235, 3255, 3534, 3720, 3882, 3990, 4123, 4340, 4529, 4712, 5176, 5208, 5320, 5890, 6470, 6510, 7068, 7764, 7980, 8246, 8680, 8835, 9058, 9705, 11780, 12293, 12369, 12940, 13020, 13587, 14136, 15528, 15960, 16492, 17670, 18116, 19410, 20057, 20615, 22645, 23560, 24586, 24738, 25880, 26040, 27174, 32984, 35340, 36232, 36879, 38820, 40114, 41230, 45290, 49172, 49476, 54348, 60171, 61465, 61845, 67935, 70680, 73758, 77640, 80228, 82460, 86051, 90580, 98344, 98952, 100285, 108696, 120342, 122930, 123690, 135870, 140399, 147516, 160456, 164920, 172102, 181160, 184395, 200570, 240684, 245860, 247380, 258153, 271740, 280798, 295032, 300855, 344204, 368790, 381083, 401140, 421197, 430255, 481368, 491720, 494760, 516306, 543480, 561596, 601710, 688408, 701995, 737580, 762166, 802280, 842394, 860510, 1032612, 1123192, 1143249, 1203420, 1290765, 1403990, 1475160, 1524332, 1684788, 1721020, 1905415, 2065224, 2105985, 2286498, 2406840, 2581530, 2667581, 2807980, 3048664, 3369576, 3442040, 3810830, 4211970, 4572996, 5163060, 5335162, 5615960, 5716245, 7621660, 8002743, 8423940, 9145992, 10326120, 10670324, 11432490, 13337905, 15243320, 16005486, 16847880, 21340648, 22864980, 26675810, 32010972, 40013715, 45729960, 53351620, 64021944, 80027430, 106703240, 160054860, 320109720]

約数ペア:

[(1, 320109720), (2, 160054860), (3, 106703240), (4, 80027430), (5, 64021944), (6, 53351620), (7, 45729960), (8, 40013715), (10, 32010972), (12, 26675810), (14, 22864980), (15, 21340648), (19, 16847880), (20, 16005486), (21, 15243320), (24, 13337905), (28, 11432490), (30, 10670324), (31, 10326120), (35, 9145992), (38, 8423940), (40, 8002743), (42, 7621660), (56, 5716245), (57, 5615960), (60, 5335162), (62, 5163060), (70, 4572996), (76, 4211970), (84, 3810830), (93, 3442040), (95, 3369576), (105, 3048664), (114, 2807980), (120, 2667581), (124, 2581530), (133, 2406840), (140, 2286498), (152, 2105985), (155, 2065224), (168, 1905415), (186, 1721020), (190, 1684788), (210, 1524332), (217, 1475160), (228, 1403990), (248, 1290765), (266, 1203420), (280, 1143249), (285, 1123192), (310, 1032612), (372, 860510), (380, 842394), (399, 802280), (420, 762166), (434, 737580), (456, 701995), (465, 688408), (532, 601710), (570, 561596), (589, 543480), (620, 516306), (647, 494760), (651, 491720), (665, 481368), (744, 430255), (760, 421197), (798, 401140), (840, 381083), (868, 368790), (930, 344204), (1064, 300855), (1085, 295032), (1140, 280798), (1178, 271740), (1240, 258153), (1294, 247380), (1302, 245860), (1330, 240684), (1596, 200570), (1736, 184395), (1767, 181160), (1860, 172102), (1941, 164920), (1995, 160456), (2170, 147516), (2280, 140399), (2356, 135870), (2588, 123690), (2604, 122930), (2660, 120342), (2945, 108696), (3192, 100285), (3235, 98952), (3255, 98344), (3534, 90580), (3720, 86051), (3882, 82460), (3990, 80228), (4123, 77640), (4340, 73758), (4529, 70680), (4712, 67935), (5176, 61845), (5208, 61465), (5320, 60171), (5890, 54348), (6470, 49476), (6510, 49172), (7068, 45290), (7764, 41230), (7980, 40114), (8246, 38820), (8680, 36879), (8835, 36232), (9058, 35340), (9705, 32984), (11780, 27174), (12293, 26040), (12369, 25880), (12940, 24738), (13020, 24586), (13587, 23560), (14136, 22645), (15528, 20615), (15960, 20057), (16492, 19410), (17670, 18116)]