31707720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 256

約数和(自身を含む): 122860800

約数和(自身を除く): 91153080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 17, 18, 20, 22, 24, 27, 30, 33, 34, 36, 40, 44, 45, 51, 54, 55, 60, 66, 68, 72, 85, 88, 90, 99, 102, 108, 110, 120, 132, 135, 136, 153, 157, 165, 170, 180, 187, 198, 204, 216, 220, 255, 264, 270, 297, 306, 314, 330, 340, 360, 374, 396, 408, 440, 459, 471, 495, 510, 540, 561, 594, 612, 628, 660, 680, 748, 765, 785, 792, 918, 935, 942, 990, 1020, 1080, 1122, 1188, 1224, 1256, 1320, 1413, 1485, 1496, 1530, 1570, 1683, 1727, 1836, 1870, 1884, 1980, 2040, 2244, 2295, 2355, 2376, 2669, 2805, 2826, 2970, 3060, 3140, 3366, 3454, 3672, 3740, 3768, 3960, 4239, 4488, 4590, 4710, 5049, 5181, 5338, 5610, 5652, 5940, 6120, 6280, 6732, 6908, 7065, 7480, 8007, 8415, 8478, 8635, 9180, 9420, 10098, 10362, 10676, 11220, 11304, 11880, 13345, 13464, 13816, 14130, 15543, 16014, 16830, 16956, 17270, 18360, 18840, 20196, 20724, 21195, 21352, 22440, 24021, 25245, 25905, 26690, 28260, 29359, 31086, 32028, 33660, 33912, 34540, 40035, 40392, 41448, 42390, 46629, 48042, 50490, 51810, 53380, 56520, 58718, 62172, 64056, 67320, 69080, 72063, 77715, 80070, 84780, 88077, 93258, 96084, 100980, 103620, 106760, 117436, 120105, 124344, 144126, 146795, 155430, 160140, 169560, 176154, 186516, 192168, 201960, 207240, 233145, 234872, 240210, 264231, 288252, 293590, 310860, 320280, 352308, 360315, 373032, 440385, 466290, 480420, 528462, 576504, 587180, 621720, 704616, 720630, 792693, 880770, 932580, 960840, 1056924, 1174360, 1321155, 1441260, 1585386, 1761540, 1865160, 2113848, 2642310, 2882520, 3170772, 3523080, 3963465, 5284620, 6341544, 7926930, 10569240, 15853860, 31707720]

約数ペア:

[(1, 31707720), (2, 15853860), (3, 10569240), (4, 7926930), (5, 6341544), (6, 5284620), (8, 3963465), (9, 3523080), (10, 3170772), (11, 2882520), (12, 2642310), (15, 2113848), (17, 1865160), (18, 1761540), (20, 1585386), (22, 1441260), (24, 1321155), (27, 1174360), (30, 1056924), (33, 960840), (34, 932580), (36, 880770), (40, 792693), (44, 720630), (45, 704616), (51, 621720), (54, 587180), (55, 576504), (60, 528462), (66, 480420), (68, 466290), (72, 440385), (85, 373032), (88, 360315), (90, 352308), (99, 320280), (102, 310860), (108, 293590), (110, 288252), (120, 264231), (132, 240210), (135, 234872), (136, 233145), (153, 207240), (157, 201960), (165, 192168), (170, 186516), (180, 176154), (187, 169560), (198, 160140), (204, 155430), (216, 146795), (220, 144126), (255, 124344), (264, 120105), (270, 117436), (297, 106760), (306, 103620), (314, 100980), (330, 96084), (340, 93258), (360, 88077), (374, 84780), (396, 80070), (408, 77715), (440, 72063), (459, 69080), (471, 67320), (495, 64056), (510, 62172), (540, 58718), (561, 56520), (594, 53380), (612, 51810), (628, 50490), (660, 48042), (680, 46629), (748, 42390), (765, 41448), (785, 40392), (792, 40035), (918, 34540), (935, 33912), (942, 33660), (990, 32028), (1020, 31086), (1080, 29359), (1122, 28260), (1188, 26690), (1224, 25905), (1256, 25245), (1320, 24021), (1413, 22440), (1485, 21352), (1496, 21195), (1530, 20724), (1570, 20196), (1683, 18840), (1727, 18360), (1836, 17270), (1870, 16956), (1884, 16830), (1980, 16014), (2040, 15543), (2244, 14130), (2295, 13816), (2355, 13464), (2376, 13345), (2669, 11880), (2805, 11304), (2826, 11220), (2970, 10676), (3060, 10362), (3140, 10098), (3366, 9420), (3454, 9180), (3672, 8635), (3740, 8478), (3768, 8415), (3960, 8007), (4239, 7480), (4488, 7065), (4590, 6908), (4710, 6732), (5049, 6280), (5181, 6120), (5338, 5940), (5610, 5652)]