64525000

素因数分解:

$2^3\times 5^5\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 158193000

約数和(自身を除く): 93668000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 89, 100, 116, 125, 145, 178, 200, 232, 250, 290, 356, 445, 500, 580, 625, 712, 725, 890, 1000, 1160, 1250, 1450, 1780, 2225, 2500, 2581, 2900, 3125, 3560, 3625, 4450, 5000, 5162, 5800, 6250, 7250, 8900, 10324, 11125, 12500, 12905, 14500, 17800, 18125, 20648, 22250, 25000, 25810, 29000, 36250, 44500, 51620, 55625, 64525, 72500, 89000, 90625, 103240, 111250, 129050, 145000, 181250, 222500, 258100, 278125, 322625, 362500, 445000, 516200, 556250, 645250, 725000, 1112500, 1290500, 1613125, 2225000, 2581000, 3226250, 6452500, 8065625, 12905000, 16131250, 32262500, 64525000]

約数ペア:

[(1, 64525000), (2, 32262500), (4, 16131250), (5, 12905000), (8, 8065625), (10, 6452500), (20, 3226250), (25, 2581000), (29, 2225000), (40, 1613125), (50, 1290500), (58, 1112500), (89, 725000), (100, 645250), (116, 556250), (125, 516200), (145, 445000), (178, 362500), (200, 322625), (232, 278125), (250, 258100), (290, 222500), (356, 181250), (445, 145000), (500, 129050), (580, 111250), (625, 103240), (712, 90625), (725, 89000), (890, 72500), (1000, 64525), (1160, 55625), (1250, 51620), (1450, 44500), (1780, 36250), (2225, 29000), (2500, 25810), (2581, 25000), (2900, 22250), (3125, 20648), (3560, 18125), (3625, 17800), (4450, 14500), (5000, 12905), (5162, 12500), (5800, 11125), (6250, 10324), (7250, 8900)]