130794920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:686

約数の個数: 64

約数和(自身を含む): 303866640

約数和(自身を除く): 173071720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 173, 205, 328, 346, 410, 461, 692, 820, 865, 922, 1384, 1640, 1730, 1844, 2305, 3460, 3688, 4610, 6920, 7093, 9220, 14186, 18440, 18901, 28372, 35465, 37802, 56744, 70930, 75604, 79753, 94505, 141860, 151208, 159506, 189010, 283720, 319012, 378020, 398765, 638024, 756040, 797530, 1595060, 3190120, 3269873, 6539746, 13079492, 16349365, 26158984, 32698730, 65397460, 130794920]

約数ペア:

[(1, 130794920), (2, 65397460), (4, 32698730), (5, 26158984), (8, 16349365), (10, 13079492), (20, 6539746), (40, 3269873), (41, 3190120), (82, 1595060), (164, 797530), (173, 756040), (205, 638024), (328, 398765), (346, 378020), (410, 319012), (461, 283720), (692, 189010), (820, 159506), (865, 151208), (922, 141860), (1384, 94505), (1640, 79753), (1730, 75604), (1844, 70930), (2305, 56744), (3460, 37802), (3688, 35465), (4610, 28372), (6920, 18901), (7093, 18440), (9220, 14186)]