421109840

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{86293}}^1$

素因数の和:86367

約数の個数: 40

約数和(自身を含む): 995142408

約数和(自身を除く): 574032568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 86293, 172586, 345172, 431465, 690344, 862930, 1380688, 1725860, 3451720, 5263873, 6903440, 10527746, 21055492, 26319365, 42110984, 52638730, 84221968, 105277460, 210554920, 421109840]

約数ペア:

[(1, 421109840), (2, 210554920), (4, 105277460), (5, 84221968), (8, 52638730), (10, 42110984), (16, 26319365), (20, 21055492), (40, 10527746), (61, 6903440), (80, 5263873), (122, 3451720), (244, 1725860), (305, 1380688), (488, 862930), (610, 690344), (976, 431465), (1220, 345172), (2440, 172586), (4880, 86293)]