154781990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{401}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 317805120

約数和(自身を除く): 163023130

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 121, 145, 242, 290, 319, 401, 605, 638, 802, 1210, 1331, 1595, 2005, 2662, 3190, 3509, 4010, 4411, 6655, 7018, 8822, 11629, 13310, 17545, 22055, 23258, 35090, 38599, 44110, 48521, 58145, 77198, 97042, 116290, 127919, 192995, 242605, 255838, 385990, 485210, 533731, 639595, 1067462, 1279190, 1407109, 2668655, 2814218, 5337310, 7035545, 14071090, 15478199, 30956398, 77390995, 154781990]

約数ペア:

[(1, 154781990), (2, 77390995), (5, 30956398), (10, 15478199), (11, 14071090), (22, 7035545), (29, 5337310), (55, 2814218), (58, 2668655), (110, 1407109), (121, 1279190), (145, 1067462), (242, 639595), (290, 533731), (319, 485210), (401, 385990), (605, 255838), (638, 242605), (802, 192995), (1210, 127919), (1331, 116290), (1595, 97042), (2005, 77198), (2662, 58145), (3190, 48521), (3509, 44110), (4010, 38599), (4411, 35090), (6655, 23258), (7018, 22055), (8822, 17545), (11629, 13310)]