990319920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{4126333}}^1$

素因数の和:4126349

約数の個数: 40

約数和(自身を含む): 3069992496

約数和(自身を除く): 2079672576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 4126333, 8252666, 12378999, 16505332, 20631665, 24757998, 33010664, 41263330, 49515996, 61894995, 66021328, 82526660, 99031992, 123789990, 165053320, 198063984, 247579980, 330106640, 495159960, 990319920]

約数ペア:

[(1, 990319920), (2, 495159960), (3, 330106640), (4, 247579980), (5, 198063984), (6, 165053320), (8, 123789990), (10, 99031992), (12, 82526660), (15, 66021328), (16, 61894995), (20, 49515996), (24, 41263330), (30, 33010664), (40, 24757998), (48, 20631665), (60, 16505332), (80, 12378999), (120, 8252666), (240, 4126333)]