20105680910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:706

約数の個数: 128

約数和(自身を含む): 43023052800

約数和(自身を除く): 22917371890

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 79, 106, 158, 181, 265, 362, 371, 379, 395, 530, 553, 742, 758, 790, 905, 1106, 1267, 1810, 1855, 1895, 2534, 2653, 2765, 3710, 3790, 4187, 5306, 5530, 6335, 8374, 9593, 12670, 13265, 14299, 19186, 20087, 20935, 26530, 28598, 29309, 29941, 40174, 41870, 47965, 58618, 59882, 67151, 68599, 71495, 95930, 100093, 100435, 134302, 137198, 140609, 142990, 146545, 149705, 200186, 200870, 209587, 281218, 293090, 299410, 335755, 342995, 419174, 480193, 500465, 671510, 685990, 703045, 757847, 960386, 1000930, 1047935, 1406090, 1515694, 1586873, 2095870, 2400965, 3173746, 3635747, 3789235, 4801930, 5304929, 5419321, 7271494, 7578470, 7934365, 10609858, 10838642, 11108111, 15868730, 18178735, 22216222, 25450229, 26524645, 27096605, 36357470, 37935247, 50900458, 53049290, 54193210, 55540555, 75870494, 111081110, 127251145, 189676235, 254502290, 287224013, 379352470, 574448026, 1436120065, 2010568091, 2872240130, 4021136182, 10052840455, 20105680910]

約数ペア:

[(1, 20105680910), (2, 10052840455), (5, 4021136182), (7, 2872240130), (10, 2010568091), (14, 1436120065), (35, 574448026), (53, 379352470), (70, 287224013), (79, 254502290), (106, 189676235), (158, 127251145), (181, 111081110), (265, 75870494), (362, 55540555), (371, 54193210), (379, 53049290), (395, 50900458), (530, 37935247), (553, 36357470), (742, 27096605), (758, 26524645), (790, 25450229), (905, 22216222), (1106, 18178735), (1267, 15868730), (1810, 11108111), (1855, 10838642), (1895, 10609858), (2534, 7934365), (2653, 7578470), (2765, 7271494), (3710, 5419321), (3790, 5304929), (4187, 4801930), (5306, 3789235), (5530, 3635747), (6335, 3173746), (8374, 2400965), (9593, 2095870), (12670, 1586873), (13265, 1515694), (14299, 1406090), (19186, 1047935), (20087, 1000930), (20935, 960386), (26530, 757847), (28598, 703045), (29309, 685990), (29941, 671510), (40174, 500465), (41870, 480193), (47965, 419174), (58618, 342995), (59882, 335755), (67151, 299410), (68599, 293090), (71495, 281218), (95930, 209587), (100093, 200870), (100435, 200186), (134302, 149705), (137198, 146545), (140609, 142990)]