20194288460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1\times {\mathrm{2777}}^1$

素因数の和:3171

約数の個数: 96

約数和(自身を含む): 45117209088

約数和(自身を除く): 24922920628

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 317, 370, 620, 634, 740, 1147, 1268, 1585, 2294, 2777, 3170, 4588, 5554, 5735, 6340, 9827, 11108, 11470, 11729, 13885, 19654, 22940, 23458, 27770, 39308, 46916, 49135, 55540, 58645, 86087, 98270, 102749, 117290, 172174, 196540, 205498, 234580, 344348, 363599, 410996, 430435, 513745, 727198, 860870, 880309, 1027490, 1454396, 1721740, 1760618, 1817995, 2054980, 3185219, 3521236, 3635990, 4401545, 6370438, 7271980, 8803090, 12740876, 15926095, 17606180, 27289579, 31852190, 32571433, 54579158, 63704380, 65142866, 109158316, 130285732, 136447895, 162857165, 272895790, 325714330, 545791580, 651428660, 1009714423, 2019428846, 4038857692, 5048572115, 10097144230, 20194288460]

約数ペア:

[(1, 20194288460), (2, 10097144230), (4, 5048572115), (5, 4038857692), (10, 2019428846), (20, 1009714423), (31, 651428660), (37, 545791580), (62, 325714330), (74, 272895790), (124, 162857165), (148, 136447895), (155, 130285732), (185, 109158316), (310, 65142866), (317, 63704380), (370, 54579158), (620, 32571433), (634, 31852190), (740, 27289579), (1147, 17606180), (1268, 15926095), (1585, 12740876), (2294, 8803090), (2777, 7271980), (3170, 6370438), (4588, 4401545), (5554, 3635990), (5735, 3521236), (6340, 3185219), (9827, 2054980), (11108, 1817995), (11470, 1760618), (11729, 1721740), (13885, 1454396), (19654, 1027490), (22940, 880309), (23458, 860870), (27770, 727198), (39308, 513745), (46916, 430435), (49135, 410996), (55540, 363599), (58645, 344348), (86087, 234580), (98270, 205498), (102749, 196540), (117290, 172174)]