87891012

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{20177}}^1$

素因数の和:20209

約数の個数: 54

約数和(自身を含む): 244214334

約数和(自身を除く): 156323322

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 484, 726, 1089, 1452, 2178, 4356, 20177, 40354, 60531, 80708, 121062, 181593, 221947, 242124, 363186, 443894, 665841, 726372, 887788, 1331682, 1997523, 2441417, 2663364, 3995046, 4882834, 7324251, 7990092, 9765668, 14648502, 21972753, 29297004, 43945506, 87891012]

約数ペア:

[(1, 87891012), (2, 43945506), (3, 29297004), (4, 21972753), (6, 14648502), (9, 9765668), (11, 7990092), (12, 7324251), (18, 4882834), (22, 3995046), (33, 2663364), (36, 2441417), (44, 1997523), (66, 1331682), (99, 887788), (121, 726372), (132, 665841), (198, 443894), (242, 363186), (363, 242124), (396, 221947), (484, 181593), (726, 121062), (1089, 80708), (1452, 60531), (2178, 40354), (4356, 20177)]