251194440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15739}}^1$

素因数の和:15779

約数の個数: 128

約数和(自身を含む): 906624000

約数和(自身を除く): 655429560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5320, 7980, 15739, 15960, 31478, 47217, 62956, 78695, 94434, 110173, 125912, 157390, 188868, 220346, 236085, 299041, 314780, 330519, 377736, 440692, 472170, 550865, 598082, 629560, 661038, 881384, 897123, 944340, 1101730, 1196164, 1322076, 1495205, 1652595, 1794246, 1888680, 2093287, 2203460, 2392328, 2644152, 2990410, 3305190, 3588492, 4186574, 4406920, 4485615, 5980820, 6279861, 6610380, 7176984, 8373148, 8971230, 10466435, 11961640, 12559722, 13220760, 16746296, 17942460, 20932870, 25119444, 31399305, 35884920, 41865740, 50238888, 62798610, 83731480, 125597220, 251194440]

約数ペア:

[(1, 251194440), (2, 125597220), (3, 83731480), (4, 62798610), (5, 50238888), (6, 41865740), (7, 35884920), (8, 31399305), (10, 25119444), (12, 20932870), (14, 17942460), (15, 16746296), (19, 13220760), (20, 12559722), (21, 11961640), (24, 10466435), (28, 8971230), (30, 8373148), (35, 7176984), (38, 6610380), (40, 6279861), (42, 5980820), (56, 4485615), (57, 4406920), (60, 4186574), (70, 3588492), (76, 3305190), (84, 2990410), (95, 2644152), (105, 2392328), (114, 2203460), (120, 2093287), (133, 1888680), (140, 1794246), (152, 1652595), (168, 1495205), (190, 1322076), (210, 1196164), (228, 1101730), (266, 944340), (280, 897123), (285, 881384), (380, 661038), (399, 629560), (420, 598082), (456, 550865), (532, 472170), (570, 440692), (665, 377736), (760, 330519), (798, 314780), (840, 299041), (1064, 236085), (1140, 220346), (1330, 188868), (1596, 157390), (1995, 125912), (2280, 110173), (2660, 94434), (3192, 78695), (3990, 62956), (5320, 47217), (7980, 31478), (15739, 15960)]