81548460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1061}}^1$

素因数の和:1144

約数の個数: 144

約数和(自身を含む): 287606592

約数和(自身を除く): 206058132

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 252, 305, 315, 366, 420, 427, 549, 610, 630, 732, 854, 915, 1061, 1098, 1220, 1260, 1281, 1708, 1830, 2122, 2135, 2196, 2562, 2745, 3183, 3660, 3843, 4244, 4270, 5124, 5305, 5490, 6366, 6405, 7427, 7686, 8540, 9549, 10610, 10980, 12732, 12810, 14854, 15372, 15915, 19098, 19215, 21220, 22281, 25620, 29708, 31830, 37135, 38196, 38430, 44562, 47745, 63660, 64721, 66843, 74270, 76860, 89124, 95490, 111405, 129442, 133686, 148540, 190980, 194163, 222810, 258884, 267372, 323605, 334215, 388326, 445620, 453047, 582489, 647210, 668430, 776652, 906094, 970815, 1164978, 1294420, 1336860, 1359141, 1812188, 1941630, 2265235, 2329956, 2718282, 2912445, 3883260, 4077423, 4530470, 5436564, 5824890, 6795705, 8154846, 9060940, 11649780, 13591410, 16309692, 20387115, 27182820, 40774230, 81548460]

約数ペア:

[(1, 81548460), (2, 40774230), (3, 27182820), (4, 20387115), (5, 16309692), (6, 13591410), (7, 11649780), (9, 9060940), (10, 8154846), (12, 6795705), (14, 5824890), (15, 5436564), (18, 4530470), (20, 4077423), (21, 3883260), (28, 2912445), (30, 2718282), (35, 2329956), (36, 2265235), (42, 1941630), (45, 1812188), (60, 1359141), (61, 1336860), (63, 1294420), (70, 1164978), (84, 970815), (90, 906094), (105, 776652), (122, 668430), (126, 647210), (140, 582489), (180, 453047), (183, 445620), (210, 388326), (244, 334215), (252, 323605), (305, 267372), (315, 258884), (366, 222810), (420, 194163), (427, 190980), (549, 148540), (610, 133686), (630, 129442), (732, 111405), (854, 95490), (915, 89124), (1061, 76860), (1098, 74270), (1220, 66843), (1260, 64721), (1281, 63660), (1708, 47745), (1830, 44562), (2122, 38430), (2135, 38196), (2196, 37135), (2562, 31830), (2745, 29708), (3183, 25620), (3660, 22281), (3843, 21220), (4244, 19215), (4270, 19098), (5124, 15915), (5305, 15372), (5490, 14854), (6366, 12810), (6405, 12732), (7427, 10980), (7686, 10610), (8540, 9549)]