1994609840

素因数分解:

$2^4\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{22853}}^1$

素因数の和:23957

約数の個数: 40

約数和(自身を含む): 4641921648

約数和(自身を除く): 2647311808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1091, 2182, 4364, 5455, 8728, 10910, 17456, 21820, 22853, 43640, 45706, 87280, 91412, 114265, 182824, 228530, 365648, 457060, 914120, 1828240, 24932623, 49865246, 99730492, 124663115, 199460984, 249326230, 398921968, 498652460, 997304920, 1994609840]

約数ペア:

[(1, 1994609840), (2, 997304920), (4, 498652460), (5, 398921968), (8, 249326230), (10, 199460984), (16, 124663115), (20, 99730492), (40, 49865246), (80, 24932623), (1091, 1828240), (2182, 914120), (4364, 457060), (5455, 365648), (8728, 228530), (10910, 182824), (17456, 114265), (21820, 91412), (22853, 87280), (43640, 45706)]