15391980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{367}}^1$

素因数の和:615

約数の個数: 72

約数和(自身を含む): 47017152

約数和(自身を除く): 31625172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 233, 367, 466, 699, 734, 932, 1101, 1165, 1398, 1468, 1835, 2097, 2202, 2330, 2796, 3303, 3495, 3670, 4194, 4404, 4660, 5505, 6606, 6990, 7340, 8388, 10485, 11010, 13212, 13980, 16515, 20970, 22020, 33030, 41940, 66060, 85511, 171022, 256533, 342044, 427555, 513066, 769599, 855110, 1026132, 1282665, 1539198, 1710220, 2565330, 3078396, 3847995, 5130660, 7695990, 15391980]

約数ペア:

[(1, 15391980), (2, 7695990), (3, 5130660), (4, 3847995), (5, 3078396), (6, 2565330), (9, 1710220), (10, 1539198), (12, 1282665), (15, 1026132), (18, 855110), (20, 769599), (30, 513066), (36, 427555), (45, 342044), (60, 256533), (90, 171022), (180, 85511), (233, 66060), (367, 41940), (466, 33030), (699, 22020), (734, 20970), (932, 16515), (1101, 13980), (1165, 13212), (1398, 11010), (1468, 10485), (1835, 8388), (2097, 7340), (2202, 6990), (2330, 6606), (2796, 5505), (3303, 4660), (3495, 4404), (3670, 4194)]