81359760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338999}}^1$

素因数の和:339015

約数の個数: 40

約数和(自身を含む): 252216000

約数和(自身を除く): 170856240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338999, 677998, 1016997, 1355996, 1694995, 2033994, 2711992, 3389990, 4067988, 5084985, 5423984, 6779980, 8135976, 10169970, 13559960, 16271952, 20339940, 27119920, 40679880, 81359760]

約数ペア:

[(1, 81359760), (2, 40679880), (3, 27119920), (4, 20339940), (5, 16271952), (6, 13559960), (8, 10169970), (10, 8135976), (12, 6779980), (15, 5423984), (16, 5084985), (20, 4067988), (24, 3389990), (30, 2711992), (40, 2033994), (48, 1694995), (60, 1355996), (80, 1016997), (120, 677998), (240, 338999)]