210300080

素因数分解:

$2^4\times 5^1\times {\mathrm{659}}^1\times {\mathrm{3989}}^1$

素因数の和:4661

約数の個数: 40

約数和(自身を含む): 489812400

約数和(自身を除く): 279512320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 659, 1318, 2636, 3295, 3989, 5272, 6590, 7978, 10544, 13180, 15956, 19945, 26360, 31912, 39890, 52720, 63824, 79780, 159560, 319120, 2628751, 5257502, 10515004, 13143755, 21030008, 26287510, 42060016, 52575020, 105150040, 210300080]

約数ペア:

[(1, 210300080), (2, 105150040), (4, 52575020), (5, 42060016), (8, 26287510), (10, 21030008), (16, 13143755), (20, 10515004), (40, 5257502), (80, 2628751), (659, 319120), (1318, 159560), (2636, 79780), (3295, 63824), (3989, 52720), (5272, 39890), (6590, 31912), (7978, 26360), (10544, 19945), (13180, 15956)]