661838640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2757661}}^1$

素因数の和:2757677

約数の個数: 40

約数和(自身を含む): 2051700528

約数和(自身を除く): 1389861888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2757661, 5515322, 8272983, 11030644, 13788305, 16545966, 22061288, 27576610, 33091932, 41364915, 44122576, 55153220, 66183864, 82729830, 110306440, 132367728, 165459660, 220612880, 330919320, 661838640]

約数ペア:

[(1, 661838640), (2, 330919320), (3, 220612880), (4, 165459660), (5, 132367728), (6, 110306440), (8, 82729830), (10, 66183864), (12, 55153220), (15, 44122576), (16, 41364915), (20, 33091932), (24, 27576610), (30, 22061288), (40, 16545966), (48, 13788305), (60, 11030644), (80, 8272983), (120, 5515322), (240, 2757661)]