21559160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2081}}^1$

素因数の和:2136

約数の個数: 64

約数和(自身を含む): 56963520

約数和(自身を除く): 35404360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2081, 2590, 4162, 5180, 8324, 10360, 10405, 14567, 16648, 20810, 29134, 41620, 58268, 72835, 76997, 83240, 116536, 145670, 153994, 291340, 307988, 384985, 538979, 582680, 615976, 769970, 1077958, 1539940, 2155916, 2694895, 3079880, 4311832, 5389790, 10779580, 21559160]

約数ペア:

[(1, 21559160), (2, 10779580), (4, 5389790), (5, 4311832), (7, 3079880), (8, 2694895), (10, 2155916), (14, 1539940), (20, 1077958), (28, 769970), (35, 615976), (37, 582680), (40, 538979), (56, 384985), (70, 307988), (74, 291340), (140, 153994), (148, 145670), (185, 116536), (259, 83240), (280, 76997), (296, 72835), (370, 58268), (518, 41620), (740, 29134), (1036, 20810), (1295, 16648), (1480, 14567), (2072, 10405), (2081, 10360), (2590, 8324), (4162, 5180)]