31405550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:242

約数の個数: 72

約数和(自身を含む): 66792600

約数和(自身を除く): 35387050

約数列:

[1, 2, 5, 10, 11, 22, 25, 29, 50, 55, 58, 110, 121, 145, 179, 242, 275, 290, 319, 358, 550, 605, 638, 725, 895, 1210, 1450, 1595, 1790, 1969, 3025, 3190, 3509, 3938, 4475, 5191, 6050, 7018, 7975, 8950, 9845, 10382, 15950, 17545, 19690, 21659, 25955, 35090, 43318, 49225, 51910, 57101, 87725, 98450, 108295, 114202, 129775, 175450, 216590, 259550, 285505, 541475, 571010, 628111, 1082950, 1256222, 1427525, 2855050, 3140555, 6281110, 15702775, 31405550]

約数ペア:

[(1, 31405550), (2, 15702775), (5, 6281110), (10, 3140555), (11, 2855050), (22, 1427525), (25, 1256222), (29, 1082950), (50, 628111), (55, 571010), (58, 541475), (110, 285505), (121, 259550), (145, 216590), (179, 175450), (242, 129775), (275, 114202), (290, 108295), (319, 98450), (358, 87725), (550, 57101), (605, 51910), (638, 49225), (725, 43318), (895, 35090), (1210, 25955), (1450, 21659), (1595, 19690), (1790, 17545), (1969, 15950), (3025, 10382), (3190, 9845), (3509, 8950), (3938, 7975), (4475, 7018), (5191, 6050)]