20775480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15739}}^1$

素因数の和:15764

約数の個数: 64

約数和(自身を含む): 67996800

約数和(自身を除く): 47221320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15739, 31478, 47217, 62956, 78695, 94434, 125912, 157390, 173129, 188868, 236085, 314780, 346258, 377736, 472170, 519387, 629560, 692516, 865645, 944340, 1038774, 1385032, 1731290, 1888680, 2077548, 2596935, 3462580, 4155096, 5193870, 6925160, 10387740, 20775480]

約数ペア:

[(1, 20775480), (2, 10387740), (3, 6925160), (4, 5193870), (5, 4155096), (6, 3462580), (8, 2596935), (10, 2077548), (11, 1888680), (12, 1731290), (15, 1385032), (20, 1038774), (22, 944340), (24, 865645), (30, 692516), (33, 629560), (40, 519387), (44, 472170), (55, 377736), (60, 346258), (66, 314780), (88, 236085), (110, 188868), (120, 173129), (132, 157390), (165, 125912), (220, 94434), (264, 78695), (330, 62956), (440, 47217), (660, 31478), (1320, 15739)]