1863940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 4318272

約数和(自身を除く): 2454332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 107, 130, 134, 214, 260, 268, 335, 428, 535, 670, 871, 1070, 1340, 1391, 1742, 2140, 2782, 3484, 4355, 5564, 6955, 7169, 8710, 13910, 14338, 17420, 27820, 28676, 35845, 71690, 93197, 143380, 186394, 372788, 465985, 931970, 1863940]

約数ペア:

[(1, 1863940), (2, 931970), (4, 465985), (5, 372788), (10, 186394), (13, 143380), (20, 93197), (26, 71690), (52, 35845), (65, 28676), (67, 27820), (107, 17420), (130, 14338), (134, 13910), (214, 8710), (260, 7169), (268, 6955), (335, 5564), (428, 4355), (535, 3484), (670, 2782), (871, 2140), (1070, 1742), (1340, 1391)]