64405380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82571}}^1$

素因数の和:82596

約数の個数: 48

約数和(自身を含む): 194209344

約数和(自身を除く): 129803964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 82571, 165142, 247713, 330284, 412855, 495426, 825710, 990852, 1073423, 1238565, 1651420, 2146846, 2477130, 3220269, 4293692, 4954260, 5367115, 6440538, 10734230, 12881076, 16101345, 21468460, 32202690, 64405380]

約数ペア:

[(1, 64405380), (2, 32202690), (3, 21468460), (4, 16101345), (5, 12881076), (6, 10734230), (10, 6440538), (12, 5367115), (13, 4954260), (15, 4293692), (20, 3220269), (26, 2477130), (30, 2146846), (39, 1651420), (52, 1238565), (60, 1073423), (65, 990852), (78, 825710), (130, 495426), (156, 412855), (195, 330284), (260, 247713), (390, 165142), (780, 82571)]