19830928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1423}}^1$

素因数の和:1511

約数の個数: 40

約数和(自身を含む): 42025088

約数和(自身を除く): 22194160

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1423, 1742, 2846, 3484, 5692, 6968, 11384, 13936, 18499, 22768, 36998, 73996, 95341, 147992, 190682, 295984, 381364, 762728, 1239433, 1525456, 2478866, 4957732, 9915464, 19830928]

約数ペア:

[(1, 19830928), (2, 9915464), (4, 4957732), (8, 2478866), (13, 1525456), (16, 1239433), (26, 762728), (52, 381364), (67, 295984), (104, 190682), (134, 147992), (208, 95341), (268, 73996), (536, 36998), (871, 22768), (1072, 18499), (1423, 13936), (1742, 11384), (2846, 6968), (3484, 5692)]