20280090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 50688000

約数和(自身を除く): 30407910

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 79, 86, 129, 158, 199, 215, 237, 258, 395, 398, 430, 474, 597, 645, 790, 995, 1185, 1194, 1290, 1990, 2370, 2985, 3397, 5970, 6794, 8557, 10191, 15721, 16985, 17114, 20382, 25671, 31442, 33970, 42785, 47163, 50955, 51342, 78605, 85570, 94326, 101910, 128355, 157210, 235815, 256710, 471630, 676003, 1352006, 2028009, 3380015, 4056018, 6760030, 10140045, 20280090]

約数ペア:

[(1, 20280090), (2, 10140045), (3, 6760030), (5, 4056018), (6, 3380015), (10, 2028009), (15, 1352006), (30, 676003), (43, 471630), (79, 256710), (86, 235815), (129, 157210), (158, 128355), (199, 101910), (215, 94326), (237, 85570), (258, 78605), (395, 51342), (398, 50955), (430, 47163), (474, 42785), (597, 33970), (645, 31442), (790, 25671), (995, 20382), (1185, 17114), (1194, 16985), (1290, 15721), (1990, 10191), (2370, 8557), (2985, 6794), (3397, 5970)]