18624940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2131}}^1$

素因数の和:2182

約数の個数: 48

約数和(自身を含む): 42981120

約数和(自身を除く): 24356180

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2131, 2185, 4262, 4370, 8524, 8740, 10655, 21310, 40489, 42620, 49013, 80978, 98026, 161956, 196052, 202445, 245065, 404890, 490130, 809780, 931247, 980260, 1862494, 3724988, 4656235, 9312470, 18624940]

約数ペア:

[(1, 18624940), (2, 9312470), (4, 4656235), (5, 3724988), (10, 1862494), (19, 980260), (20, 931247), (23, 809780), (38, 490130), (46, 404890), (76, 245065), (92, 202445), (95, 196052), (115, 161956), (190, 98026), (230, 80978), (380, 49013), (437, 42620), (460, 40489), (874, 21310), (1748, 10655), (2131, 8740), (2185, 8524), (4262, 4370)]