28925000

素因数分解:

$2^3\times 5^5\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 73823400

約数和(自身を除く): 44898400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 89, 100, 104, 125, 130, 178, 200, 250, 260, 325, 356, 445, 500, 520, 625, 650, 712, 890, 1000, 1157, 1250, 1300, 1625, 1780, 2225, 2314, 2500, 2600, 3125, 3250, 3560, 4450, 4628, 5000, 5785, 6250, 6500, 8125, 8900, 9256, 11125, 11570, 12500, 13000, 16250, 17800, 22250, 23140, 25000, 28925, 32500, 40625, 44500, 46280, 55625, 57850, 65000, 81250, 89000, 111250, 115700, 144625, 162500, 222500, 231400, 278125, 289250, 325000, 445000, 556250, 578500, 723125, 1112500, 1157000, 1446250, 2225000, 2892500, 3615625, 5785000, 7231250, 14462500, 28925000]

約数ペア:

[(1, 28925000), (2, 14462500), (4, 7231250), (5, 5785000), (8, 3615625), (10, 2892500), (13, 2225000), (20, 1446250), (25, 1157000), (26, 1112500), (40, 723125), (50, 578500), (52, 556250), (65, 445000), (89, 325000), (100, 289250), (104, 278125), (125, 231400), (130, 222500), (178, 162500), (200, 144625), (250, 115700), (260, 111250), (325, 89000), (356, 81250), (445, 65000), (500, 57850), (520, 55625), (625, 46280), (650, 44500), (712, 40625), (890, 32500), (1000, 28925), (1157, 25000), (1250, 23140), (1300, 22250), (1625, 17800), (1780, 16250), (2225, 13000), (2314, 12500), (2500, 11570), (2600, 11125), (3125, 9256), (3250, 8900), (3560, 8125), (4450, 6500), (4628, 6250), (5000, 5785)]