31512640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 112

約数和(自身を含む): 81198720

約数和(自身を除く): 49686080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 71, 73, 76, 80, 95, 142, 146, 152, 160, 190, 284, 292, 304, 320, 355, 365, 380, 568, 584, 608, 710, 730, 760, 1136, 1168, 1216, 1349, 1387, 1420, 1460, 1520, 2272, 2336, 2698, 2774, 2840, 2920, 3040, 4544, 4672, 5183, 5396, 5548, 5680, 5840, 6080, 6745, 6935, 10366, 10792, 11096, 11360, 11680, 13490, 13870, 20732, 21584, 22192, 22720, 23360, 25915, 26980, 27740, 41464, 43168, 44384, 51830, 53960, 55480, 82928, 86336, 88768, 98477, 103660, 107920, 110960, 165856, 196954, 207320, 215840, 221920, 331712, 393908, 414640, 431680, 443840, 492385, 787816, 829280, 984770, 1575632, 1658560, 1969540, 3151264, 3939080, 6302528, 7878160, 15756320, 31512640]

約数ペア:

[(1, 31512640), (2, 15756320), (4, 7878160), (5, 6302528), (8, 3939080), (10, 3151264), (16, 1969540), (19, 1658560), (20, 1575632), (32, 984770), (38, 829280), (40, 787816), (64, 492385), (71, 443840), (73, 431680), (76, 414640), (80, 393908), (95, 331712), (142, 221920), (146, 215840), (152, 207320), (160, 196954), (190, 165856), (284, 110960), (292, 107920), (304, 103660), (320, 98477), (355, 88768), (365, 86336), (380, 82928), (568, 55480), (584, 53960), (608, 51830), (710, 44384), (730, 43168), (760, 41464), (1136, 27740), (1168, 26980), (1216, 25915), (1349, 23360), (1387, 22720), (1420, 22192), (1460, 21584), (1520, 20732), (2272, 13870), (2336, 13490), (2698, 11680), (2774, 11360), (2840, 11096), (2920, 10792), (3040, 10366), (4544, 6935), (4672, 6745), (5183, 6080), (5396, 5840), (5548, 5680)]