28103900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:935

約数の個数: 72

約数和(自身を含む): 68901840

約数和(自身を除く): 40797940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 100, 110, 116, 145, 220, 275, 290, 319, 550, 580, 638, 725, 881, 1100, 1276, 1450, 1595, 1762, 2900, 3190, 3524, 4405, 6380, 7975, 8810, 9691, 15950, 17620, 19382, 22025, 25549, 31900, 38764, 44050, 48455, 51098, 88100, 96910, 102196, 127745, 193820, 242275, 255490, 281039, 484550, 510980, 562078, 638725, 969100, 1124156, 1277450, 1405195, 2554900, 2810390, 5620780, 7025975, 14051950, 28103900]

約数ペア:

[(1, 28103900), (2, 14051950), (4, 7025975), (5, 5620780), (10, 2810390), (11, 2554900), (20, 1405195), (22, 1277450), (25, 1124156), (29, 969100), (44, 638725), (50, 562078), (55, 510980), (58, 484550), (100, 281039), (110, 255490), (116, 242275), (145, 193820), (220, 127745), (275, 102196), (290, 96910), (319, 88100), (550, 51098), (580, 48455), (638, 44050), (725, 38764), (881, 31900), (1100, 25549), (1276, 22025), (1450, 19382), (1595, 17620), (1762, 15950), (2900, 9691), (3190, 8810), (3524, 7975), (4405, 6380)]