15439660

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 33530112

約数和(自身を除く): 18090452

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 131, 142, 166, 262, 284, 332, 355, 415, 524, 655, 710, 830, 1310, 1420, 1660, 2620, 5893, 9301, 10873, 11786, 18602, 21746, 23572, 29465, 37204, 43492, 46505, 54365, 58930, 93010, 108730, 117860, 186020, 217460, 771983, 1543966, 3087932, 3859915, 7719830, 15439660]

約数ペア:

[(1, 15439660), (2, 7719830), (4, 3859915), (5, 3087932), (10, 1543966), (20, 771983), (71, 217460), (83, 186020), (131, 117860), (142, 108730), (166, 93010), (262, 58930), (284, 54365), (332, 46505), (355, 43492), (415, 37204), (524, 29465), (655, 23572), (710, 21746), (830, 18602), (1310, 11786), (1420, 10873), (1660, 9301), (2620, 5893)]