201137840

素因数分解:

$2^4\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{1997}}^1$

素因数の和:3269

約数の個数: 40

約数和(自身を含む): 468251280

約数和(自身を除く): 267113440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1259, 1997, 2518, 3994, 5036, 6295, 7988, 9985, 10072, 12590, 15976, 19970, 20144, 25180, 31952, 39940, 50360, 79880, 100720, 159760, 2514223, 5028446, 10056892, 12571115, 20113784, 25142230, 40227568, 50284460, 100568920, 201137840]

約数ペア:

[(1, 201137840), (2, 100568920), (4, 50284460), (5, 40227568), (8, 25142230), (10, 20113784), (16, 12571115), (20, 10056892), (40, 5028446), (80, 2514223), (1259, 159760), (1997, 100720), (2518, 79880), (3994, 50360), (5036, 39940), (6295, 31952), (7988, 25180), (9985, 20144), (10072, 19970), (12590, 15976)]