67978900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2131}}^1$

素因数の和:2185

約数の個数: 72

約数和(自身を含む): 166551840

約数和(自身を除く): 98572940

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, 1100, 1276, 1450, 1595, 2131, 2900, 3190, 4262, 6380, 7975, 8524, 10655, 15950, 21310, 23441, 31900, 42620, 46882, 53275, 61799, 93764, 106550, 117205, 123598, 213100, 234410, 247196, 308995, 468820, 586025, 617990, 679789, 1172050, 1235980, 1359578, 1544975, 2344100, 2719156, 3089950, 3398945, 6179900, 6797890, 13595780, 16994725, 33989450, 67978900]

約数ペア:

[(1, 67978900), (2, 33989450), (4, 16994725), (5, 13595780), (10, 6797890), (11, 6179900), (20, 3398945), (22, 3089950), (25, 2719156), (29, 2344100), (44, 1544975), (50, 1359578), (55, 1235980), (58, 1172050), (100, 679789), (110, 617990), (116, 586025), (145, 468820), (220, 308995), (275, 247196), (290, 234410), (319, 213100), (550, 123598), (580, 117205), (638, 106550), (725, 93764), (1100, 61799), (1276, 53275), (1450, 46882), (1595, 42620), (2131, 31900), (2900, 23441), (3190, 21310), (4262, 15950), (6380, 10655), (7975, 8524)]