81733808

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{167}}^1\times {\mathrm{181}}^1$

素因数の和:382

約数の個数: 60

約数和(自身を含む): 173457648

約数和(自身を除く): 91723840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 167, 169, 181, 208, 334, 338, 362, 668, 676, 724, 1336, 1352, 1448, 2171, 2353, 2672, 2704, 2896, 4342, 4706, 8684, 9412, 17368, 18824, 28223, 30227, 30589, 34736, 37648, 56446, 60454, 61178, 112892, 120908, 122356, 225784, 241816, 244712, 392951, 451568, 483632, 489424, 785902, 1571804, 3143608, 5108363, 6287216, 10216726, 20433452, 40866904, 81733808]

約数ペア:

[(1, 81733808), (2, 40866904), (4, 20433452), (8, 10216726), (13, 6287216), (16, 5108363), (26, 3143608), (52, 1571804), (104, 785902), (167, 489424), (169, 483632), (181, 451568), (208, 392951), (334, 244712), (338, 241816), (362, 225784), (668, 122356), (676, 120908), (724, 112892), (1336, 61178), (1352, 60454), (1448, 56446), (2171, 37648), (2353, 34736), (2672, 30589), (2704, 30227), (2896, 28223), (4342, 18824), (4706, 17368), (8684, 9412)]