209490560

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10559}}^1$

素因数の和:10609

約数の個数: 64

約数和(自身を含む): 517017600

約数和(自身を除く): 307527040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 10559, 19840, 21118, 42236, 52795, 84472, 105590, 168944, 211180, 327329, 337888, 422360, 654658, 675776, 844720, 1309316, 1351552, 1636645, 1689440, 2618632, 3273290, 3378880, 5237264, 6546580, 6757760, 10474528, 13093160, 20949056, 26186320, 41898112, 52372640, 104745280, 209490560]

約数ペア:

[(1, 209490560), (2, 104745280), (4, 52372640), (5, 41898112), (8, 26186320), (10, 20949056), (16, 13093160), (20, 10474528), (31, 6757760), (32, 6546580), (40, 5237264), (62, 3378880), (64, 3273290), (80, 2618632), (124, 1689440), (128, 1636645), (155, 1351552), (160, 1309316), (248, 844720), (310, 675776), (320, 654658), (496, 422360), (620, 337888), (640, 327329), (992, 211180), (1240, 168944), (1984, 105590), (2480, 84472), (3968, 52795), (4960, 42236), (9920, 21118), (10559, 19840)]