28485160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1579}}^1$

素因数の和:1642

約数の個数: 64

約数和(自身を含む): 71668800

約数和(自身を除く): 43183640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1579, 1640, 1804, 2255, 3158, 3608, 4510, 6316, 7895, 9020, 12632, 15790, 17369, 18040, 31580, 34738, 63160, 64739, 69476, 86845, 129478, 138952, 173690, 258956, 323695, 347380, 517912, 647390, 694760, 712129, 1294780, 1424258, 2589560, 2848516, 3560645, 5697032, 7121290, 14242580, 28485160]

約数ペア:

[(1, 28485160), (2, 14242580), (4, 7121290), (5, 5697032), (8, 3560645), (10, 2848516), (11, 2589560), (20, 1424258), (22, 1294780), (40, 712129), (41, 694760), (44, 647390), (55, 517912), (82, 347380), (88, 323695), (110, 258956), (164, 173690), (205, 138952), (220, 129478), (328, 86845), (410, 69476), (440, 64739), (451, 63160), (820, 34738), (902, 31580), (1579, 18040), (1640, 17369), (1804, 15790), (2255, 12632), (3158, 9020), (3608, 7895), (4510, 6316)]