20782890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4357}}^1$

素因数の和:4423

約数の個数: 48

約数和(自身を含む): 55067688

約数和(自身を除く): 34284798

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 53, 90, 106, 159, 265, 318, 477, 530, 795, 954, 1590, 2385, 4357, 4770, 8714, 13071, 21785, 26142, 39213, 43570, 65355, 78426, 130710, 196065, 230921, 392130, 461842, 692763, 1154605, 1385526, 2078289, 2309210, 3463815, 4156578, 6927630, 10391445, 20782890]

約数ペア:

[(1, 20782890), (2, 10391445), (3, 6927630), (5, 4156578), (6, 3463815), (9, 2309210), (10, 2078289), (15, 1385526), (18, 1154605), (30, 692763), (45, 461842), (53, 392130), (90, 230921), (106, 196065), (159, 130710), (265, 78426), (318, 65355), (477, 43570), (530, 39213), (795, 26142), (954, 21785), (1590, 13071), (2385, 8714), (4357, 4770)]