18354440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{751}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 45480960

約数和(自身を除く): 27126520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 751, 940, 1222, 1502, 1880, 2444, 3004, 3055, 3755, 4888, 6008, 6110, 7510, 9763, 12220, 15020, 19526, 24440, 30040, 35297, 39052, 48815, 70594, 78104, 97630, 141188, 176485, 195260, 282376, 352970, 390520, 458861, 705940, 917722, 1411880, 1835444, 2294305, 3670888, 4588610, 9177220, 18354440]

約数ペア:

[(1, 18354440), (2, 9177220), (4, 4588610), (5, 3670888), (8, 2294305), (10, 1835444), (13, 1411880), (20, 917722), (26, 705940), (40, 458861), (47, 390520), (52, 352970), (65, 282376), (94, 195260), (104, 176485), (130, 141188), (188, 97630), (235, 78104), (260, 70594), (376, 48815), (470, 39052), (520, 35297), (611, 30040), (751, 24440), (940, 19526), (1222, 15020), (1502, 12220), (1880, 9763), (2444, 7510), (3004, 6110), (3055, 6008), (3755, 4888)]