1978941570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1\times {\mathrm{1571}}^1$

素因数の和:1991

約数の個数: 64

約数和(自身を含む): 4799001600

約数和(自身を除く): 2820060030

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 199, 211, 398, 422, 597, 633, 995, 1055, 1194, 1266, 1571, 1990, 2110, 2985, 3142, 3165, 4713, 5970, 6330, 7855, 9426, 15710, 23565, 41989, 47130, 83978, 125967, 209945, 251934, 312629, 331481, 419890, 625258, 629835, 662962, 937887, 994443, 1259670, 1563145, 1657405, 1875774, 1988886, 3126290, 3314810, 4689435, 4972215, 9378870, 9944430, 65964719, 131929438, 197894157, 329823595, 395788314, 659647190, 989470785, 1978941570]

約数ペア:

[(1, 1978941570), (2, 989470785), (3, 659647190), (5, 395788314), (6, 329823595), (10, 197894157), (15, 131929438), (30, 65964719), (199, 9944430), (211, 9378870), (398, 4972215), (422, 4689435), (597, 3314810), (633, 3126290), (995, 1988886), (1055, 1875774), (1194, 1657405), (1266, 1563145), (1571, 1259670), (1990, 994443), (2110, 937887), (2985, 662962), (3142, 629835), (3165, 625258), (4713, 419890), (5970, 331481), (6330, 312629), (7855, 251934), (9426, 209945), (15710, 125967), (23565, 83978), (41989, 47130)]