16728920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{607}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 24639400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 607, 689, 1060, 1214, 1378, 2120, 2428, 2756, 3035, 3445, 4856, 5512, 6070, 6890, 7891, 12140, 13780, 15782, 24280, 27560, 31564, 32171, 39455, 63128, 64342, 78910, 128684, 157820, 160855, 257368, 315640, 321710, 418223, 643420, 836446, 1286840, 1672892, 2091115, 3345784, 4182230, 8364460, 16728920]

約数ペア:

[(1, 16728920), (2, 8364460), (4, 4182230), (5, 3345784), (8, 2091115), (10, 1672892), (13, 1286840), (20, 836446), (26, 643420), (40, 418223), (52, 321710), (53, 315640), (65, 257368), (104, 160855), (106, 157820), (130, 128684), (212, 78910), (260, 64342), (265, 63128), (424, 39455), (520, 32171), (530, 31564), (607, 27560), (689, 24280), (1060, 15782), (1214, 13780), (1378, 12140), (2120, 7891), (2428, 6890), (2756, 6070), (3035, 5512), (3445, 4856)]