397409840

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1\times {\mathrm{313}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 946144800

約数和(自身を除く): 548734960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 269, 295, 313, 472, 538, 590, 626, 944, 1076, 1180, 1252, 1345, 1565, 2152, 2360, 2504, 2690, 3130, 4304, 4720, 5008, 5380, 6260, 10760, 12520, 15871, 18467, 21520, 25040, 31742, 36934, 63484, 73868, 79355, 84197, 92335, 126968, 147736, 158710, 168394, 184670, 253936, 295472, 317420, 336788, 369340, 420985, 634840, 673576, 738680, 841970, 1269680, 1347152, 1477360, 1683940, 3367880, 4967623, 6735760, 9935246, 19870492, 24838115, 39740984, 49676230, 79481968, 99352460, 198704920, 397409840]

約数ペア:

[(1, 397409840), (2, 198704920), (4, 99352460), (5, 79481968), (8, 49676230), (10, 39740984), (16, 24838115), (20, 19870492), (40, 9935246), (59, 6735760), (80, 4967623), (118, 3367880), (236, 1683940), (269, 1477360), (295, 1347152), (313, 1269680), (472, 841970), (538, 738680), (590, 673576), (626, 634840), (944, 420985), (1076, 369340), (1180, 336788), (1252, 317420), (1345, 295472), (1565, 253936), (2152, 184670), (2360, 168394), (2504, 158710), (2690, 147736), (3130, 126968), (4304, 92335), (4720, 84197), (5008, 79355), (5380, 73868), (6260, 63484), (10760, 36934), (12520, 31742), (15871, 25040), (18467, 21520)]