331375960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1\times {\mathrm{691}}^1$

素因数の和:1352

約数の個数: 64

約数和(自身を含む): 787219200

約数和(自身を除く): 455843240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 631, 691, 760, 1262, 1382, 2524, 2764, 3155, 3455, 5048, 5528, 6310, 6910, 11989, 12620, 13129, 13820, 23978, 25240, 26258, 27640, 47956, 52516, 59945, 65645, 95912, 105032, 119890, 131290, 239780, 262580, 436021, 479560, 525160, 872042, 1744084, 2180105, 3488168, 4360210, 8284399, 8720420, 16568798, 17440840, 33137596, 41421995, 66275192, 82843990, 165687980, 331375960]

約数ペア:

[(1, 331375960), (2, 165687980), (4, 82843990), (5, 66275192), (8, 41421995), (10, 33137596), (19, 17440840), (20, 16568798), (38, 8720420), (40, 8284399), (76, 4360210), (95, 3488168), (152, 2180105), (190, 1744084), (380, 872042), (631, 525160), (691, 479560), (760, 436021), (1262, 262580), (1382, 239780), (2524, 131290), (2764, 119890), (3155, 105032), (3455, 95912), (5048, 65645), (5528, 59945), (6310, 52516), (6910, 47956), (11989, 27640), (12620, 26258), (13129, 25240), (13820, 23978)]