18657990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 96

約数和(自身を含む): 53778816

約数和(自身を除く): 35120826

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 37, 39, 45, 65, 74, 78, 90, 111, 117, 130, 185, 195, 222, 234, 333, 370, 390, 431, 481, 555, 585, 666, 862, 962, 1110, 1170, 1293, 1443, 1665, 2155, 2405, 2586, 2886, 3330, 3879, 4310, 4329, 4810, 5603, 6465, 7215, 7758, 8658, 11206, 12930, 14430, 15947, 16809, 19395, 21645, 28015, 31894, 33618, 38790, 43290, 47841, 50427, 56030, 79735, 84045, 95682, 100854, 143523, 159470, 168090, 207311, 239205, 252135, 287046, 414622, 478410, 504270, 621933, 717615, 1036555, 1243866, 1435230, 1865799, 2073110, 3109665, 3731598, 6219330, 9328995, 18657990]

約数ペア:

[(1, 18657990), (2, 9328995), (3, 6219330), (5, 3731598), (6, 3109665), (9, 2073110), (10, 1865799), (13, 1435230), (15, 1243866), (18, 1036555), (26, 717615), (30, 621933), (37, 504270), (39, 478410), (45, 414622), (65, 287046), (74, 252135), (78, 239205), (90, 207311), (111, 168090), (117, 159470), (130, 143523), (185, 100854), (195, 95682), (222, 84045), (234, 79735), (333, 56030), (370, 50427), (390, 47841), (431, 43290), (481, 38790), (555, 33618), (585, 31894), (666, 28015), (862, 21645), (962, 19395), (1110, 16809), (1170, 15947), (1293, 14430), (1443, 12930), (1665, 11206), (2155, 8658), (2405, 7758), (2586, 7215), (2886, 6465), (3330, 5603), (3879, 4810), (4310, 4329)]