31782780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{853}}^1$

素因数の和:897

約数の個数: 120

約数和(自身を含む): 104160672

約数和(自身を除く): 72377892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 108, 115, 135, 138, 162, 180, 207, 230, 270, 276, 324, 345, 405, 414, 460, 540, 621, 690, 810, 828, 853, 1035, 1242, 1380, 1620, 1706, 1863, 2070, 2484, 2559, 3105, 3412, 3726, 4140, 4265, 5118, 6210, 7452, 7677, 8530, 9315, 10236, 12420, 12795, 15354, 17060, 18630, 19619, 23031, 25590, 30708, 37260, 38385, 39238, 46062, 51180, 58857, 69093, 76770, 78476, 92124, 98095, 115155, 117714, 138186, 153540, 176571, 196190, 230310, 235428, 276372, 294285, 345465, 353142, 392380, 460620, 529713, 588570, 690930, 706284, 882855, 1059426, 1177140, 1381860, 1589139, 1765710, 2118852, 2648565, 3178278, 3531420, 5297130, 6356556, 7945695, 10594260, 15891390, 31782780]

約数ペア:

[(1, 31782780), (2, 15891390), (3, 10594260), (4, 7945695), (5, 6356556), (6, 5297130), (9, 3531420), (10, 3178278), (12, 2648565), (15, 2118852), (18, 1765710), (20, 1589139), (23, 1381860), (27, 1177140), (30, 1059426), (36, 882855), (45, 706284), (46, 690930), (54, 588570), (60, 529713), (69, 460620), (81, 392380), (90, 353142), (92, 345465), (108, 294285), (115, 276372), (135, 235428), (138, 230310), (162, 196190), (180, 176571), (207, 153540), (230, 138186), (270, 117714), (276, 115155), (324, 98095), (345, 92124), (405, 78476), (414, 76770), (460, 69093), (540, 58857), (621, 51180), (690, 46062), (810, 39238), (828, 38385), (853, 37260), (1035, 30708), (1242, 25590), (1380, 23031), (1620, 19619), (1706, 18630), (1863, 17060), (2070, 15354), (2484, 12795), (2559, 12420), (3105, 10236), (3412, 9315), (3726, 8530), (4140, 7677), (4265, 7452), (5118, 6210)]