129687920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2081}}^1$

素因数の和:2154

約数の個数: 80

約数和(自身を含む): 325291680

約数和(自身を除く): 195603760

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, 1640, 2081, 3116, 3280, 3895, 4162, 6232, 7790, 8324, 10405, 12464, 15580, 16648, 20810, 31160, 33296, 39539, 41620, 62320, 79078, 83240, 85321, 158156, 166480, 170642, 197695, 316312, 341284, 395390, 426605, 632624, 682568, 790780, 853210, 1365136, 1581560, 1621099, 1706420, 3163120, 3242198, 3412840, 6484396, 6825680, 8105495, 12968792, 16210990, 25937584, 32421980, 64843960, 129687920]

約数ペア:

[(1, 129687920), (2, 64843960), (4, 32421980), (5, 25937584), (8, 16210990), (10, 12968792), (16, 8105495), (19, 6825680), (20, 6484396), (38, 3412840), (40, 3242198), (41, 3163120), (76, 1706420), (80, 1621099), (82, 1581560), (95, 1365136), (152, 853210), (164, 790780), (190, 682568), (205, 632624), (304, 426605), (328, 395390), (380, 341284), (410, 316312), (656, 197695), (760, 170642), (779, 166480), (820, 158156), (1520, 85321), (1558, 83240), (1640, 79078), (2081, 62320), (3116, 41620), (3280, 39539), (3895, 33296), (4162, 31160), (6232, 20810), (7790, 16648), (8324, 15580), (10405, 12464)]