18724020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:537

約数の個数: 96

約数和(自身を含む): 60614400

約数和(自身を除く): 41890380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 109, 140, 210, 218, 327, 409, 420, 436, 545, 654, 763, 818, 1090, 1227, 1308, 1526, 1635, 1636, 2045, 2180, 2289, 2454, 2863, 3052, 3270, 3815, 4090, 4578, 4908, 5726, 6135, 6540, 7630, 8180, 8589, 9156, 11445, 11452, 12270, 14315, 15260, 17178, 22890, 24540, 28630, 34356, 42945, 44581, 45780, 57260, 85890, 89162, 133743, 171780, 178324, 222905, 267486, 312067, 445810, 534972, 624134, 668715, 891620, 936201, 1248268, 1337430, 1560335, 1872402, 2674860, 3120670, 3744804, 4681005, 6241340, 9362010, 18724020]

約数ペア:

[(1, 18724020), (2, 9362010), (3, 6241340), (4, 4681005), (5, 3744804), (6, 3120670), (7, 2674860), (10, 1872402), (12, 1560335), (14, 1337430), (15, 1248268), (20, 936201), (21, 891620), (28, 668715), (30, 624134), (35, 534972), (42, 445810), (60, 312067), (70, 267486), (84, 222905), (105, 178324), (109, 171780), (140, 133743), (210, 89162), (218, 85890), (327, 57260), (409, 45780), (420, 44581), (436, 42945), (545, 34356), (654, 28630), (763, 24540), (818, 22890), (1090, 17178), (1227, 15260), (1308, 14315), (1526, 12270), (1635, 11452), (1636, 11445), (2045, 9156), (2180, 8589), (2289, 8180), (2454, 7630), (2863, 6540), (3052, 6135), (3270, 5726), (3815, 4908), (4090, 4578)]