18729123790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1\times {\mathrm{6451}}^1$

素因数の和:7465

約数の個数: 64

約数和(自身を含む): 37929088512

約数和(自身を除く): 19199964722

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 971, 1495, 1942, 2990, 4855, 6451, 9710, 12623, 12902, 22333, 25246, 32255, 44666, 63115, 64510, 83863, 111665, 126230, 148373, 167726, 223330, 290329, 296746, 419315, 580658, 741865, 838630, 1451645, 1483730, 1928849, 2903290, 3857698, 6263921, 9644245, 12527842, 19288490, 31319605, 62639210, 81430973, 144070183, 162861946, 288140366, 407154865, 720350915, 814309730, 1440701830, 1872912379, 3745824758, 9364561895, 18729123790]

約数ペア:

[(1, 18729123790), (2, 9364561895), (5, 3745824758), (10, 1872912379), (13, 1440701830), (23, 814309730), (26, 720350915), (46, 407154865), (65, 288140366), (115, 162861946), (130, 144070183), (230, 81430973), (299, 62639210), (598, 31319605), (971, 19288490), (1495, 12527842), (1942, 9644245), (2990, 6263921), (4855, 3857698), (6451, 2903290), (9710, 1928849), (12623, 1483730), (12902, 1451645), (22333, 838630), (25246, 741865), (32255, 580658), (44666, 419315), (63115, 296746), (64510, 290329), (83863, 223330), (111665, 167726), (126230, 148373)]