489659480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{373}}^1\times {\mathrm{887}}^1$

素因数の和:1308

約数の個数: 64

約数和(自身を含む): 1135823040

約数和(自身を除く): 646163560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 373, 740, 746, 887, 1480, 1492, 1774, 1865, 2984, 3548, 3730, 4435, 7096, 7460, 8870, 13801, 14920, 17740, 27602, 32819, 35480, 55204, 65638, 69005, 110408, 131276, 138010, 164095, 262552, 276020, 328190, 330851, 552040, 656380, 661702, 1312760, 1323404, 1654255, 2646808, 3308510, 6617020, 12241487, 13234040, 24482974, 48965948, 61207435, 97931896, 122414870, 244829740, 489659480]

約数ペア:

[(1, 489659480), (2, 244829740), (4, 122414870), (5, 97931896), (8, 61207435), (10, 48965948), (20, 24482974), (37, 13234040), (40, 12241487), (74, 6617020), (148, 3308510), (185, 2646808), (296, 1654255), (370, 1323404), (373, 1312760), (740, 661702), (746, 656380), (887, 552040), (1480, 330851), (1492, 328190), (1774, 276020), (1865, 262552), (2984, 164095), (3548, 138010), (3730, 131276), (4435, 110408), (7096, 69005), (7460, 65638), (8870, 55204), (13801, 35480), (14920, 32819), (17740, 27602)]