81407976

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{20071}}^1$

素因数の和:20106

約数の個数: 48

約数和(自身を含む): 220390560

約数和(自身を除く): 138982584

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 507, 676, 1014, 1352, 2028, 4056, 20071, 40142, 60213, 80284, 120426, 160568, 240852, 260923, 481704, 521846, 782769, 1043692, 1565538, 2087384, 3131076, 3391999, 6262152, 6783998, 10175997, 13567996, 20351994, 27135992, 40703988, 81407976]

約数ペア:

[(1, 81407976), (2, 40703988), (3, 27135992), (4, 20351994), (6, 13567996), (8, 10175997), (12, 6783998), (13, 6262152), (24, 3391999), (26, 3131076), (39, 2087384), (52, 1565538), (78, 1043692), (104, 782769), (156, 521846), (169, 481704), (312, 260923), (338, 240852), (507, 160568), (676, 120426), (1014, 80284), (1352, 60213), (2028, 40142), (4056, 20071)]