28150100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 67474848

約数和(自身を除く): 39324748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 157, 163, 220, 275, 314, 326, 550, 628, 652, 785, 815, 1100, 1570, 1630, 1727, 1793, 3140, 3260, 3454, 3586, 3925, 4075, 6908, 7172, 7850, 8150, 8635, 8965, 15700, 16300, 17270, 17930, 25591, 34540, 35860, 43175, 44825, 51182, 86350, 89650, 102364, 127955, 172700, 179300, 255910, 281501, 511820, 563002, 639775, 1126004, 1279550, 1407505, 2559100, 2815010, 5630020, 7037525, 14075050, 28150100]

約数ペア:

[(1, 28150100), (2, 14075050), (4, 7037525), (5, 5630020), (10, 2815010), (11, 2559100), (20, 1407505), (22, 1279550), (25, 1126004), (44, 639775), (50, 563002), (55, 511820), (100, 281501), (110, 255910), (157, 179300), (163, 172700), (220, 127955), (275, 102364), (314, 89650), (326, 86350), (550, 51182), (628, 44825), (652, 43175), (785, 35860), (815, 34540), (1100, 25591), (1570, 17930), (1630, 17270), (1727, 16300), (1793, 15700), (3140, 8965), (3260, 8635), (3454, 8150), (3586, 7850), (3925, 7172), (4075, 6908)]