31868680

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 75297600

約数和(自身を除く): 43428920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 83, 116, 145, 166, 232, 290, 331, 332, 415, 580, 662, 664, 830, 1160, 1324, 1655, 1660, 2407, 2648, 3310, 3320, 4814, 6620, 9599, 9628, 12035, 13240, 19198, 19256, 24070, 27473, 38396, 47995, 48140, 54946, 76792, 95990, 96280, 109892, 137365, 191980, 219784, 274730, 383960, 549460, 796717, 1098920, 1593434, 3186868, 3983585, 6373736, 7967170, 15934340, 31868680]

約数ペア:

[(1, 31868680), (2, 15934340), (4, 7967170), (5, 6373736), (8, 3983585), (10, 3186868), (20, 1593434), (29, 1098920), (40, 796717), (58, 549460), (83, 383960), (116, 274730), (145, 219784), (166, 191980), (232, 137365), (290, 109892), (331, 96280), (332, 95990), (415, 76792), (580, 54946), (662, 48140), (664, 47995), (830, 38396), (1160, 27473), (1324, 24070), (1655, 19256), (1660, 19198), (2407, 13240), (2648, 12035), (3310, 9628), (3320, 9599), (4814, 6620)]