812471940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{367}}^1$

素因数の和:647

約数の個数: 216

約数和(自身を含む): 2886129792

約数和(自身を除く): 2073657852

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 251, 252, 294, 315, 367, 420, 441, 490, 502, 588, 630, 734, 735, 753, 882, 980, 1004, 1101, 1255, 1260, 1468, 1470, 1506, 1757, 1764, 1835, 2202, 2205, 2259, 2510, 2569, 2940, 3012, 3303, 3514, 3670, 3765, 4404, 4410, 4518, 5020, 5138, 5271, 5505, 6606, 7028, 7340, 7530, 7707, 8785, 8820, 9036, 10276, 10542, 11010, 11295, 12299, 12845, 13212, 15060, 15414, 15813, 16515, 17570, 17983, 21084, 22020, 22590, 23121, 24598, 25690, 26355, 30828, 31626, 33030, 35140, 35966, 36897, 38535, 45180, 46242, 49196, 51380, 52710, 53949, 61495, 63252, 66060, 71932, 73794, 77070, 79065, 89915, 92117, 92484, 105420, 107898, 110691, 115605, 122990, 147588, 154140, 158130, 161847, 179830, 184234, 184485, 215796, 221382, 231210, 245980, 269745, 276351, 316260, 323694, 359660, 368468, 368970, 442764, 460585, 462420, 539490, 552702, 553455, 644819, 647388, 737940, 809235, 829053, 921170, 1078980, 1105404, 1106910, 1289638, 1381755, 1618470, 1658106, 1842340, 1934457, 2213820, 2579276, 2763510, 3224095, 3236940, 3316212, 3868914, 4145265, 4513733, 5527020, 5803371, 6448190, 7737828, 8290530, 9027466, 9672285, 11606742, 12896380, 13541199, 16581060, 18054932, 19344570, 22568665, 23213484, 27082398, 29016855, 38689140, 40623597, 45137330, 54164796, 58033710, 67705995, 81247194, 90274660, 116067420, 135411990, 162494388, 203117985, 270823980, 406235970, 812471940]

約数ペア:

[(1, 812471940), (2, 406235970), (3, 270823980), (4, 203117985), (5, 162494388), (6, 135411990), (7, 116067420), (9, 90274660), (10, 81247194), (12, 67705995), (14, 58033710), (15, 54164796), (18, 45137330), (20, 40623597), (21, 38689140), (28, 29016855), (30, 27082398), (35, 23213484), (36, 22568665), (42, 19344570), (45, 18054932), (49, 16581060), (60, 13541199), (63, 12896380), (70, 11606742), (84, 9672285), (90, 9027466), (98, 8290530), (105, 7737828), (126, 6448190), (140, 5803371), (147, 5527020), (180, 4513733), (196, 4145265), (210, 3868914), (245, 3316212), (251, 3236940), (252, 3224095), (294, 2763510), (315, 2579276), (367, 2213820), (420, 1934457), (441, 1842340), (490, 1658106), (502, 1618470), (588, 1381755), (630, 1289638), (734, 1106910), (735, 1105404), (753, 1078980), (882, 921170), (980, 829053), (1004, 809235), (1101, 737940), (1255, 647388), (1260, 644819), (1468, 553455), (1470, 552702), (1506, 539490), (1757, 462420), (1764, 460585), (1835, 442764), (2202, 368970), (2205, 368468), (2259, 359660), (2510, 323694), (2569, 316260), (2940, 276351), (3012, 269745), (3303, 245980), (3514, 231210), (3670, 221382), (3765, 215796), (4404, 184485), (4410, 184234), (4518, 179830), (5020, 161847), (5138, 158130), (5271, 154140), (5505, 147588), (6606, 122990), (7028, 115605), (7340, 110691), (7530, 107898), (7707, 105420), (8785, 92484), (8820, 92117), (9036, 89915), (10276, 79065), (10542, 77070), (11010, 73794), (11295, 71932), (12299, 66060), (12845, 63252), (13212, 61495), (15060, 53949), (15414, 52710), (15813, 51380), (16515, 49196), (17570, 46242), (17983, 45180), (21084, 38535), (22020, 36897), (22590, 35966), (23121, 35140), (24598, 33030), (25690, 31626), (26355, 30828)]