81681480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1427}}^1$

素因数の和:1500

約数の個数: 128

約数和(自身を含む): 277603200

約数和(自身を除く): 195921720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 90, 106, 108, 120, 135, 159, 180, 212, 216, 265, 270, 318, 360, 424, 477, 530, 540, 636, 795, 954, 1060, 1080, 1272, 1427, 1431, 1590, 1908, 2120, 2385, 2854, 2862, 3180, 3816, 4281, 4770, 5708, 5724, 6360, 7135, 7155, 8562, 9540, 11416, 11448, 12843, 14270, 14310, 17124, 19080, 21405, 25686, 28540, 28620, 34248, 38529, 42810, 51372, 57080, 57240, 64215, 75631, 77058, 85620, 102744, 128430, 151262, 154116, 171240, 192645, 226893, 256860, 302524, 308232, 378155, 385290, 453786, 513720, 605048, 680679, 756310, 770580, 907572, 1134465, 1361358, 1512620, 1541160, 1815144, 2042037, 2268930, 2722716, 3025240, 3403395, 4084074, 4537860, 5445432, 6806790, 8168148, 9075720, 10210185, 13613580, 16336296, 20420370, 27227160, 40840740, 81681480]

約数ペア:

[(1, 81681480), (2, 40840740), (3, 27227160), (4, 20420370), (5, 16336296), (6, 13613580), (8, 10210185), (9, 9075720), (10, 8168148), (12, 6806790), (15, 5445432), (18, 4537860), (20, 4084074), (24, 3403395), (27, 3025240), (30, 2722716), (36, 2268930), (40, 2042037), (45, 1815144), (53, 1541160), (54, 1512620), (60, 1361358), (72, 1134465), (90, 907572), (106, 770580), (108, 756310), (120, 680679), (135, 605048), (159, 513720), (180, 453786), (212, 385290), (216, 378155), (265, 308232), (270, 302524), (318, 256860), (360, 226893), (424, 192645), (477, 171240), (530, 154116), (540, 151262), (636, 128430), (795, 102744), (954, 85620), (1060, 77058), (1080, 75631), (1272, 64215), (1427, 57240), (1431, 57080), (1590, 51372), (1908, 42810), (2120, 38529), (2385, 34248), (2854, 28620), (2862, 28540), (3180, 25686), (3816, 21405), (4281, 19080), (4770, 17124), (5708, 14310), (5724, 14270), (6360, 12843), (7135, 11448), (7155, 11416), (8562, 9540)]