20300720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:123

約数の個数: 160

約数和(自身を含む): 57853440

約数和(自身を除く): 37552720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 23, 34, 40, 44, 46, 55, 59, 68, 80, 85, 88, 92, 110, 115, 118, 136, 170, 176, 184, 187, 220, 230, 236, 253, 272, 295, 340, 368, 374, 391, 440, 460, 472, 506, 590, 649, 680, 748, 782, 880, 920, 935, 944, 1003, 1012, 1180, 1265, 1298, 1357, 1360, 1496, 1564, 1840, 1870, 1955, 2006, 2024, 2360, 2530, 2596, 2714, 2992, 3128, 3245, 3740, 3910, 4012, 4048, 4301, 4720, 5015, 5060, 5192, 5428, 6256, 6490, 6785, 7480, 7820, 8024, 8602, 10030, 10120, 10384, 10856, 11033, 12980, 13570, 14927, 14960, 15640, 16048, 17204, 20060, 20240, 21505, 21712, 22066, 23069, 25960, 27140, 29854, 31280, 34408, 40120, 43010, 44132, 46138, 51920, 54280, 55165, 59708, 68816, 74635, 80240, 86020, 88264, 92276, 108560, 110330, 115345, 119416, 149270, 172040, 176528, 184552, 220660, 230690, 238832, 253759, 298540, 344080, 369104, 441320, 461380, 507518, 597080, 882640, 922760, 1015036, 1194160, 1268795, 1845520, 2030072, 2537590, 4060144, 5075180, 10150360, 20300720]

約数ペア:

[(1, 20300720), (2, 10150360), (4, 5075180), (5, 4060144), (8, 2537590), (10, 2030072), (11, 1845520), (16, 1268795), (17, 1194160), (20, 1015036), (22, 922760), (23, 882640), (34, 597080), (40, 507518), (44, 461380), (46, 441320), (55, 369104), (59, 344080), (68, 298540), (80, 253759), (85, 238832), (88, 230690), (92, 220660), (110, 184552), (115, 176528), (118, 172040), (136, 149270), (170, 119416), (176, 115345), (184, 110330), (187, 108560), (220, 92276), (230, 88264), (236, 86020), (253, 80240), (272, 74635), (295, 68816), (340, 59708), (368, 55165), (374, 54280), (391, 51920), (440, 46138), (460, 44132), (472, 43010), (506, 40120), (590, 34408), (649, 31280), (680, 29854), (748, 27140), (782, 25960), (880, 23069), (920, 22066), (935, 21712), (944, 21505), (1003, 20240), (1012, 20060), (1180, 17204), (1265, 16048), (1298, 15640), (1357, 14960), (1360, 14927), (1496, 13570), (1564, 12980), (1840, 11033), (1870, 10856), (1955, 10384), (2006, 10120), (2024, 10030), (2360, 8602), (2530, 8024), (2596, 7820), (2714, 7480), (2992, 6785), (3128, 6490), (3245, 6256), (3740, 5428), (3910, 5192), (4012, 5060), (4048, 5015), (4301, 4720)]