15191920

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3583}}^1$

素因数の和:3649

約数の個数: 40

約数和(自身を含む): 35997696

約数和(自身を除く): 20805776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 3583, 4240, 7166, 14332, 17915, 28664, 35830, 57328, 71660, 143320, 189899, 286640, 379798, 759596, 949495, 1519192, 1898990, 3038384, 3797980, 7595960, 15191920]

約数ペア:

[(1, 15191920), (2, 7595960), (4, 3797980), (5, 3038384), (8, 1898990), (10, 1519192), (16, 949495), (20, 759596), (40, 379798), (53, 286640), (80, 189899), (106, 143320), (212, 71660), (265, 57328), (424, 35830), (530, 28664), (848, 17915), (1060, 14332), (2120, 7166), (3583, 4240)]