42142860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{911}}^1$

素因数の和:1183

約数の個数: 72

約数和(自身を含む): 128471616

約数和(自身を除く): 86328756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 257, 514, 771, 911, 1028, 1285, 1542, 1822, 2313, 2570, 2733, 3084, 3644, 3855, 4555, 4626, 5140, 5466, 7710, 8199, 9110, 9252, 10932, 11565, 13665, 15420, 16398, 18220, 23130, 27330, 32796, 40995, 46260, 54660, 81990, 163980, 234127, 468254, 702381, 936508, 1170635, 1404762, 2107143, 2341270, 2809524, 3511905, 4214286, 4682540, 7023810, 8428572, 10535715, 14047620, 21071430, 42142860]

約数ペア:

[(1, 42142860), (2, 21071430), (3, 14047620), (4, 10535715), (5, 8428572), (6, 7023810), (9, 4682540), (10, 4214286), (12, 3511905), (15, 2809524), (18, 2341270), (20, 2107143), (30, 1404762), (36, 1170635), (45, 936508), (60, 702381), (90, 468254), (180, 234127), (257, 163980), (514, 81990), (771, 54660), (911, 46260), (1028, 40995), (1285, 32796), (1542, 27330), (1822, 23130), (2313, 18220), (2570, 16398), (2733, 15420), (3084, 13665), (3644, 11565), (3855, 10932), (4555, 9252), (4626, 9110), (5140, 8199), (5466, 7710)]