2667860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 6246912

約数和(自身を除く): 3579052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 331, 403, 620, 662, 806, 1324, 1612, 1655, 2015, 3310, 4030, 4303, 6620, 8060, 8606, 10261, 17212, 20522, 21515, 41044, 43030, 51305, 86060, 102610, 133393, 205220, 266786, 533572, 666965, 1333930, 2667860]

約数ペア:

[(1, 2667860), (2, 1333930), (4, 666965), (5, 533572), (10, 266786), (13, 205220), (20, 133393), (26, 102610), (31, 86060), (52, 51305), (62, 43030), (65, 41044), (124, 21515), (130, 20522), (155, 17212), (260, 10261), (310, 8606), (331, 8060), (403, 6620), (620, 4303), (662, 4030), (806, 3310), (1324, 2015), (1612, 1655)]