291265000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{4481}}^1$

素因数の和:4520

約数の個数: 80

約数和(自身を含む): 735092820

約数和(自身を除く): 443827820

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 625, 650, 1000, 1250, 1300, 1625, 2500, 2600, 3250, 4481, 5000, 6500, 8125, 8962, 13000, 16250, 17924, 22405, 32500, 35848, 44810, 58253, 65000, 89620, 112025, 116506, 179240, 224050, 233012, 291265, 448100, 466024, 560125, 582530, 896200, 1120250, 1165060, 1456325, 2240500, 2330120, 2800625, 2912650, 4481000, 5601250, 5825300, 7281625, 11202500, 11650600, 14563250, 22405000, 29126500, 36408125, 58253000, 72816250, 145632500, 291265000]

約数ペア:

[(1, 291265000), (2, 145632500), (4, 72816250), (5, 58253000), (8, 36408125), (10, 29126500), (13, 22405000), (20, 14563250), (25, 11650600), (26, 11202500), (40, 7281625), (50, 5825300), (52, 5601250), (65, 4481000), (100, 2912650), (104, 2800625), (125, 2330120), (130, 2240500), (200, 1456325), (250, 1165060), (260, 1120250), (325, 896200), (500, 582530), (520, 560125), (625, 466024), (650, 448100), (1000, 291265), (1250, 233012), (1300, 224050), (1625, 179240), (2500, 116506), (2600, 112025), (3250, 89620), (4481, 65000), (5000, 58253), (6500, 44810), (8125, 35848), (8962, 32500), (13000, 22405), (16250, 17924)]