31881330

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:353

約数の個数: 128

約数和(自身を含む): 94832640

約数和(自身を除く): 62951310

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 31, 39, 45, 54, 62, 65, 78, 90, 93, 117, 130, 135, 155, 186, 195, 234, 270, 279, 293, 310, 351, 390, 403, 465, 558, 585, 586, 702, 806, 837, 879, 930, 1170, 1209, 1395, 1465, 1674, 1755, 1758, 2015, 2418, 2637, 2790, 2930, 3510, 3627, 3809, 4030, 4185, 4395, 5274, 6045, 7254, 7618, 7911, 8370, 8790, 9083, 10881, 11427, 12090, 13185, 15822, 18135, 18166, 19045, 21762, 22854, 26370, 27249, 34281, 36270, 38090, 39555, 45415, 54405, 54498, 57135, 68562, 79110, 81747, 90830, 102843, 108810, 114270, 118079, 136245, 163494, 171405, 205686, 236158, 245241, 272490, 342810, 354237, 408735, 490482, 514215, 590395, 708474, 817470, 1028430, 1062711, 1180790, 1226205, 1771185, 2125422, 2452410, 3188133, 3542370, 5313555, 6376266, 10627110, 15940665, 31881330]

約数ペア:

[(1, 31881330), (2, 15940665), (3, 10627110), (5, 6376266), (6, 5313555), (9, 3542370), (10, 3188133), (13, 2452410), (15, 2125422), (18, 1771185), (26, 1226205), (27, 1180790), (30, 1062711), (31, 1028430), (39, 817470), (45, 708474), (54, 590395), (62, 514215), (65, 490482), (78, 408735), (90, 354237), (93, 342810), (117, 272490), (130, 245241), (135, 236158), (155, 205686), (186, 171405), (195, 163494), (234, 136245), (270, 118079), (279, 114270), (293, 108810), (310, 102843), (351, 90830), (390, 81747), (403, 79110), (465, 68562), (558, 57135), (585, 54498), (586, 54405), (702, 45415), (806, 39555), (837, 38090), (879, 36270), (930, 34281), (1170, 27249), (1209, 26370), (1395, 22854), (1465, 21762), (1674, 19045), (1755, 18166), (1758, 18135), (2015, 15822), (2418, 13185), (2637, 12090), (2790, 11427), (2930, 10881), (3510, 9083), (3627, 8790), (3809, 8370), (4030, 7911), (4185, 7618), (4395, 7254), (5274, 6045)]