81570760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{863}}^1$

素因数の和:1030

約数の個数: 64

約数和(自身を含む): 195955200

約数和(自身を除く): 114384440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 139, 170, 278, 340, 556, 680, 695, 863, 1112, 1390, 1726, 2363, 2780, 3452, 4315, 4726, 5560, 6904, 8630, 9452, 11815, 14671, 17260, 18904, 23630, 29342, 34520, 47260, 58684, 73355, 94520, 117368, 119957, 146710, 239914, 293420, 479828, 586840, 599785, 959656, 1199570, 2039269, 2399140, 4078538, 4798280, 8157076, 10196345, 16314152, 20392690, 40785380, 81570760]

約数ペア:

[(1, 81570760), (2, 40785380), (4, 20392690), (5, 16314152), (8, 10196345), (10, 8157076), (17, 4798280), (20, 4078538), (34, 2399140), (40, 2039269), (68, 1199570), (85, 959656), (136, 599785), (139, 586840), (170, 479828), (278, 293420), (340, 239914), (556, 146710), (680, 119957), (695, 117368), (863, 94520), (1112, 73355), (1390, 58684), (1726, 47260), (2363, 34520), (2780, 29342), (3452, 23630), (4315, 18904), (4726, 17260), (5560, 14671), (6904, 11815), (8630, 9452)]