20927270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 96

約数和(自身を含む): 49014720

約数和(自身を除く): 28087450

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 29, 35, 58, 61, 65, 70, 91, 122, 130, 145, 169, 182, 203, 290, 305, 338, 377, 406, 427, 455, 610, 754, 793, 845, 854, 910, 1015, 1183, 1586, 1690, 1769, 1885, 2030, 2135, 2366, 2639, 3538, 3770, 3965, 4270, 4901, 5278, 5551, 5915, 7930, 8845, 9802, 10309, 11102, 11830, 12383, 13195, 17690, 20618, 22997, 24505, 24766, 26390, 27755, 34307, 45994, 49010, 51545, 55510, 61915, 68614, 72163, 103090, 114985, 123830, 144326, 160979, 171535, 229970, 298961, 321958, 343070, 360815, 597922, 721630, 804895, 1494805, 1609790, 2092727, 2989610, 4185454, 10463635, 20927270]

約数ペア:

[(1, 20927270), (2, 10463635), (5, 4185454), (7, 2989610), (10, 2092727), (13, 1609790), (14, 1494805), (26, 804895), (29, 721630), (35, 597922), (58, 360815), (61, 343070), (65, 321958), (70, 298961), (91, 229970), (122, 171535), (130, 160979), (145, 144326), (169, 123830), (182, 114985), (203, 103090), (290, 72163), (305, 68614), (338, 61915), (377, 55510), (406, 51545), (427, 49010), (455, 45994), (610, 34307), (754, 27755), (793, 26390), (845, 24766), (854, 24505), (910, 22997), (1015, 20618), (1183, 17690), (1586, 13195), (1690, 12383), (1769, 11830), (1885, 11102), (2030, 10309), (2135, 9802), (2366, 8845), (2639, 7930), (3538, 5915), (3770, 5551), (3965, 5278), (4270, 4901)]