40002380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{521}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 92080800

約数和(自身を除く): 52078420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 349, 521, 698, 1042, 1396, 1745, 2084, 2605, 3490, 3839, 5210, 5731, 6980, 7678, 10420, 11462, 15356, 19195, 22924, 28655, 38390, 57310, 76780, 114620, 181829, 363658, 727316, 909145, 1818290, 2000119, 3636580, 4000238, 8000476, 10000595, 20001190, 40002380]

約数ペア:

[(1, 40002380), (2, 20001190), (4, 10000595), (5, 8000476), (10, 4000238), (11, 3636580), (20, 2000119), (22, 1818290), (44, 909145), (55, 727316), (110, 363658), (220, 181829), (349, 114620), (521, 76780), (698, 57310), (1042, 38390), (1396, 28655), (1745, 22924), (2084, 19195), (2605, 15356), (3490, 11462), (3839, 10420), (5210, 7678), (5731, 6980)]