279946700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1621}}^1$

素因数の和:1803

約数の個数: 72

約数和(自身を含む): 667342704

約数和(自身を除く): 387396004

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 157, 220, 275, 314, 550, 628, 785, 1100, 1570, 1621, 1727, 3140, 3242, 3454, 3925, 6484, 6908, 7850, 8105, 8635, 15700, 16210, 17270, 17831, 32420, 34540, 35662, 40525, 43175, 71324, 81050, 86350, 89155, 162100, 172700, 178310, 254497, 356620, 445775, 508994, 891550, 1017988, 1272485, 1783100, 2544970, 2799467, 5089940, 5598934, 6362425, 11197868, 12724850, 13997335, 25449700, 27994670, 55989340, 69986675, 139973350, 279946700]

約数ペア:

[(1, 279946700), (2, 139973350), (4, 69986675), (5, 55989340), (10, 27994670), (11, 25449700), (20, 13997335), (22, 12724850), (25, 11197868), (44, 6362425), (50, 5598934), (55, 5089940), (100, 2799467), (110, 2544970), (157, 1783100), (220, 1272485), (275, 1017988), (314, 891550), (550, 508994), (628, 445775), (785, 356620), (1100, 254497), (1570, 178310), (1621, 172700), (1727, 162100), (3140, 89155), (3242, 86350), (3454, 81050), (3925, 71324), (6484, 43175), (6908, 40525), (7850, 35662), (8105, 34540), (8635, 32420), (15700, 17831), (16210, 17270)]