139919740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{2719}}^1$

素因数の和:2842

約数の個数: 48

約数和(自身を含む): 307077120

約数和(自身を除く): 167157380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 1660, 2573, 2719, 5146, 5438, 10292, 10876, 12865, 13595, 25730, 27190, 51460, 54380, 84289, 168578, 225677, 337156, 421445, 451354, 842890, 902708, 1128385, 1685780, 2256770, 4513540, 6995987, 13991974, 27983948, 34979935, 69959870, 139919740]

約数ペア:

[(1, 139919740), (2, 69959870), (4, 34979935), (5, 27983948), (10, 13991974), (20, 6995987), (31, 4513540), (62, 2256770), (83, 1685780), (124, 1128385), (155, 902708), (166, 842890), (310, 451354), (332, 421445), (415, 337156), (620, 225677), (830, 168578), (1660, 84289), (2573, 54380), (2719, 51460), (5146, 27190), (5438, 25730), (10292, 13595), (10876, 12865)]