18315220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1699}}^1$

素因数の和:1733

約数の個数: 72

約数和(自身を含む): 48837600

約数和(自身を除く): 30522380

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 1699, 2156, 2695, 3398, 5390, 6796, 8495, 10780, 11893, 16990, 18689, 23786, 33980, 37378, 47572, 59465, 74756, 83251, 93445, 118930, 130823, 166502, 186890, 237860, 261646, 333004, 373780, 416255, 523292, 654115, 832510, 915761, 1308230, 1665020, 1831522, 2616460, 3663044, 4578805, 9157610, 18315220]

約数ペア:

[(1, 18315220), (2, 9157610), (4, 4578805), (5, 3663044), (7, 2616460), (10, 1831522), (11, 1665020), (14, 1308230), (20, 915761), (22, 832510), (28, 654115), (35, 523292), (44, 416255), (49, 373780), (55, 333004), (70, 261646), (77, 237860), (98, 186890), (110, 166502), (140, 130823), (154, 118930), (196, 93445), (220, 83251), (245, 74756), (308, 59465), (385, 47572), (490, 37378), (539, 33980), (770, 23786), (980, 18689), (1078, 16990), (1540, 11893), (1699, 10780), (2156, 8495), (2695, 6796), (3398, 5390)]