81843240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2179}}^1$

素因数の和:2506

約数の個数: 64

約数和(自身を含む): 246427200

約数和(自身を除く): 164583960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 313, 626, 939, 1252, 1565, 1878, 2179, 2504, 3130, 3756, 4358, 4695, 6260, 6537, 7512, 8716, 9390, 10895, 12520, 13074, 17432, 18780, 21790, 26148, 32685, 37560, 43580, 52296, 65370, 87160, 130740, 261480, 682027, 1364054, 2046081, 2728108, 3410135, 4092162, 5456216, 6820270, 8184324, 10230405, 13640540, 16368648, 20460810, 27281080, 40921620, 81843240]

約数ペア:

[(1, 81843240), (2, 40921620), (3, 27281080), (4, 20460810), (5, 16368648), (6, 13640540), (8, 10230405), (10, 8184324), (12, 6820270), (15, 5456216), (20, 4092162), (24, 3410135), (30, 2728108), (40, 2046081), (60, 1364054), (120, 682027), (313, 261480), (626, 130740), (939, 87160), (1252, 65370), (1565, 52296), (1878, 43580), (2179, 37560), (2504, 32685), (3130, 26148), (3756, 21790), (4358, 18780), (4695, 17432), (6260, 13074), (6537, 12520), (7512, 10895), (8716, 9390)]