49879980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1531}}^1$

素因数の和:1727

約数の個数: 72

約数和(自身を含む): 152237904

約数和(自身を除く): 102357924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 1086, 1531, 1629, 1810, 2172, 2715, 3062, 3258, 3620, 4593, 5430, 6124, 6516, 7655, 8145, 9186, 10860, 13779, 15310, 16290, 18372, 22965, 27558, 30620, 32580, 45930, 55116, 68895, 91860, 137790, 275580, 277111, 554222, 831333, 1108444, 1385555, 1662666, 2493999, 2771110, 3325332, 4156665, 4987998, 5542220, 8313330, 9975996, 12469995, 16626660, 24939990, 49879980]

約数ペア:

[(1, 49879980), (2, 24939990), (3, 16626660), (4, 12469995), (5, 9975996), (6, 8313330), (9, 5542220), (10, 4987998), (12, 4156665), (15, 3325332), (18, 2771110), (20, 2493999), (30, 1662666), (36, 1385555), (45, 1108444), (60, 831333), (90, 554222), (180, 277111), (181, 275580), (362, 137790), (543, 91860), (724, 68895), (905, 55116), (1086, 45930), (1531, 32580), (1629, 30620), (1810, 27558), (2172, 22965), (2715, 18372), (3062, 16290), (3258, 15310), (3620, 13779), (4593, 10860), (5430, 9186), (6124, 8145), (6516, 7655)]