205409490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47881}}^1$

素因数の和:47915

約数の個数: 64

約数和(自身を含む): 579180672

約数和(自身を除く): 373771182

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 47881, 95762, 143643, 239405, 287286, 478810, 526691, 622453, 718215, 1053382, 1244906, 1436430, 1580073, 1867359, 2633455, 3112265, 3160146, 3734718, 5266910, 6224530, 6846983, 7900365, 9336795, 13693966, 15800730, 18673590, 20540949, 34234915, 41081898, 68469830, 102704745, 205409490]

約数ペア:

[(1, 205409490), (2, 102704745), (3, 68469830), (5, 41081898), (6, 34234915), (10, 20540949), (11, 18673590), (13, 15800730), (15, 13693966), (22, 9336795), (26, 7900365), (30, 6846983), (33, 6224530), (39, 5266910), (55, 3734718), (65, 3160146), (66, 3112265), (78, 2633455), (110, 1867359), (130, 1580073), (143, 1436430), (165, 1244906), (195, 1053382), (286, 718215), (330, 622453), (390, 526691), (429, 478810), (715, 287286), (858, 239405), (1430, 143643), (2145, 95762), (4290, 47881)]