81618110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 178675200

約数和(自身を除く): 97057090

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 109, 133, 190, 218, 266, 545, 563, 665, 763, 1090, 1126, 1330, 1526, 2071, 2815, 3815, 3941, 4142, 5630, 7630, 7882, 10355, 10697, 14497, 19705, 20710, 21394, 28994, 39410, 53485, 61367, 72485, 74879, 106970, 122734, 144970, 149758, 306835, 374395, 429569, 613670, 748790, 859138, 1165973, 2147845, 2331946, 4295690, 5829865, 8161811, 11659730, 16323622, 40809055, 81618110]

約数ペア:

[(1, 81618110), (2, 40809055), (5, 16323622), (7, 11659730), (10, 8161811), (14, 5829865), (19, 4295690), (35, 2331946), (38, 2147845), (70, 1165973), (95, 859138), (109, 748790), (133, 613670), (190, 429569), (218, 374395), (266, 306835), (545, 149758), (563, 144970), (665, 122734), (763, 106970), (1090, 74879), (1126, 72485), (1330, 61367), (1526, 53485), (2071, 39410), (2815, 28994), (3815, 21394), (3941, 20710), (4142, 19705), (5630, 14497), (7630, 10697), (7882, 10355)]