18891525680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{30271}}^1$

素因数の和:30582

約数の個数: 80

約数和(自身を含む): 45607795200

約数和(自身を除く): 26716269520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 269, 290, 464, 538, 580, 1076, 1160, 1345, 2152, 2320, 2690, 4304, 5380, 7801, 10760, 15602, 21520, 30271, 31204, 39005, 60542, 62408, 78010, 121084, 124816, 151355, 156020, 242168, 302710, 312040, 484336, 605420, 624080, 877859, 1210840, 1755718, 2421680, 3511436, 4389295, 7022872, 8142899, 8778590, 14045744, 16285798, 17557180, 32571596, 35114360, 40714495, 65143192, 70228720, 81428990, 130286384, 162857980, 236144071, 325715960, 472288142, 651431920, 944576284, 1180720355, 1889152568, 2361440710, 3778305136, 4722881420, 9445762840, 18891525680]

約数ペア:

[(1, 18891525680), (2, 9445762840), (4, 4722881420), (5, 3778305136), (8, 2361440710), (10, 1889152568), (16, 1180720355), (20, 944576284), (29, 651431920), (40, 472288142), (58, 325715960), (80, 236144071), (116, 162857980), (145, 130286384), (232, 81428990), (269, 70228720), (290, 65143192), (464, 40714495), (538, 35114360), (580, 32571596), (1076, 17557180), (1160, 16285798), (1345, 14045744), (2152, 8778590), (2320, 8142899), (2690, 7022872), (4304, 4389295), (5380, 3511436), (7801, 2421680), (10760, 1755718), (15602, 1210840), (21520, 877859), (30271, 624080), (31204, 605420), (39005, 484336), (60542, 312040), (62408, 302710), (78010, 242168), (121084, 156020), (124816, 151355)]