261098040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{310831}}^1$

素因数の和:310852

約数の個数: 64

約数和(自身を含む): 895196160

約数和(自身を除く): 634098120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 310831, 621662, 932493, 1243324, 1554155, 1864986, 2175817, 2486648, 3108310, 3729972, 4351634, 4662465, 6216620, 6527451, 7459944, 8703268, 9324930, 10879085, 12433240, 13054902, 17406536, 18649860, 21758170, 26109804, 32637255, 37299720, 43516340, 52219608, 65274510, 87032680, 130549020, 261098040]

約数ペア:

[(1, 261098040), (2, 130549020), (3, 87032680), (4, 65274510), (5, 52219608), (6, 43516340), (7, 37299720), (8, 32637255), (10, 26109804), (12, 21758170), (14, 18649860), (15, 17406536), (20, 13054902), (21, 12433240), (24, 10879085), (28, 9324930), (30, 8703268), (35, 7459944), (40, 6527451), (42, 6216620), (56, 4662465), (60, 4351634), (70, 3729972), (84, 3108310), (105, 2486648), (120, 2175817), (140, 1864986), (168, 1554155), (210, 1243324), (280, 932493), (420, 621662), (840, 310831)]