999960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:668

約数の個数: 64

約数和(自身を含む): 3235680

約数和(自身を除く): 2235720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 641, 780, 1282, 1560, 1923, 2564, 3205, 3846, 5128, 6410, 7692, 8333, 9615, 12820, 15384, 16666, 19230, 24999, 25640, 33332, 38460, 41665, 49998, 66664, 76920, 83330, 99996, 124995, 166660, 199992, 249990, 333320, 499980, 999960]

約数ペア:

[(1, 999960), (2, 499980), (3, 333320), (4, 249990), (5, 199992), (6, 166660), (8, 124995), (10, 99996), (12, 83330), (13, 76920), (15, 66664), (20, 49998), (24, 41665), (26, 38460), (30, 33332), (39, 25640), (40, 24999), (52, 19230), (60, 16666), (65, 15384), (78, 12820), (104, 9615), (120, 8333), (130, 7692), (156, 6410), (195, 5128), (260, 3846), (312, 3205), (390, 2564), (520, 1923), (641, 1560), (780, 1282)]