101020720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1621}}^1$

素因数の和:1694

約数の個数: 80

約数和(自身を含む): 253421280

約数和(自身を除く): 152400560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 1520, 1558, 1621, 1640, 3116, 3242, 3280, 3895, 6232, 6484, 7790, 8105, 12464, 12968, 15580, 16210, 25936, 30799, 31160, 32420, 61598, 62320, 64840, 66461, 123196, 129680, 132922, 153995, 246392, 265844, 307990, 332305, 492784, 531688, 615980, 664610, 1063376, 1231960, 1262759, 1329220, 2463920, 2525518, 2658440, 5051036, 5316880, 6313795, 10102072, 12627590, 20204144, 25255180, 50510360, 101020720]

約数ペア:

[(1, 101020720), (2, 50510360), (4, 25255180), (5, 20204144), (8, 12627590), (10, 10102072), (16, 6313795), (19, 5316880), (20, 5051036), (38, 2658440), (40, 2525518), (41, 2463920), (76, 1329220), (80, 1262759), (82, 1231960), (95, 1063376), (152, 664610), (164, 615980), (190, 531688), (205, 492784), (304, 332305), (328, 307990), (380, 265844), (410, 246392), (656, 153995), (760, 132922), (779, 129680), (820, 123196), (1520, 66461), (1558, 64840), (1621, 62320), (1640, 61598), (3116, 32420), (3242, 31160), (3280, 30799), (3895, 25936), (6232, 16210), (6484, 15580), (7790, 12968), (8105, 12464)]