81649776

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:263

約数の個数: 160

約数和(自身を含む): 247484160

約数和(自身を除く): 165834384

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 34, 39, 43, 48, 51, 52, 68, 78, 86, 102, 104, 129, 136, 156, 172, 179, 204, 208, 221, 258, 272, 312, 344, 358, 408, 442, 516, 537, 559, 624, 663, 688, 716, 731, 816, 884, 1032, 1074, 1118, 1326, 1432, 1462, 1677, 1768, 2064, 2148, 2193, 2236, 2327, 2652, 2864, 2924, 3043, 3354, 3536, 4296, 4386, 4472, 4654, 5304, 5848, 6086, 6708, 6981, 7697, 8592, 8772, 8944, 9129, 9308, 9503, 10608, 11696, 12172, 13416, 13962, 15394, 17544, 18258, 18616, 19006, 23091, 24344, 26832, 27924, 28509, 30788, 35088, 36516, 37232, 38012, 39559, 46182, 48688, 55848, 57018, 61576, 73032, 76024, 79118, 92364, 100061, 111696, 114036, 118677, 123152, 130849, 146064, 152048, 158236, 184728, 200122, 228072, 237354, 261698, 300183, 316472, 369456, 392547, 400244, 456144, 474708, 523396, 600366, 632944, 785094, 800488, 949416, 1046792, 1200732, 1570188, 1600976, 1701037, 1898832, 2093584, 2401464, 3140376, 3402074, 4802928, 5103111, 6280752, 6804148, 10206222, 13608296, 20412444, 27216592, 40824888, 81649776]

約数ペア:

[(1, 81649776), (2, 40824888), (3, 27216592), (4, 20412444), (6, 13608296), (8, 10206222), (12, 6804148), (13, 6280752), (16, 5103111), (17, 4802928), (24, 3402074), (26, 3140376), (34, 2401464), (39, 2093584), (43, 1898832), (48, 1701037), (51, 1600976), (52, 1570188), (68, 1200732), (78, 1046792), (86, 949416), (102, 800488), (104, 785094), (129, 632944), (136, 600366), (156, 523396), (172, 474708), (179, 456144), (204, 400244), (208, 392547), (221, 369456), (258, 316472), (272, 300183), (312, 261698), (344, 237354), (358, 228072), (408, 200122), (442, 184728), (516, 158236), (537, 152048), (559, 146064), (624, 130849), (663, 123152), (688, 118677), (716, 114036), (731, 111696), (816, 100061), (884, 92364), (1032, 79118), (1074, 76024), (1118, 73032), (1326, 61576), (1432, 57018), (1462, 55848), (1677, 48688), (1768, 46182), (2064, 39559), (2148, 38012), (2193, 37232), (2236, 36516), (2327, 35088), (2652, 30788), (2864, 28509), (2924, 27924), (3043, 26832), (3354, 24344), (3536, 23091), (4296, 19006), (4386, 18616), (4472, 18258), (4654, 17544), (5304, 15394), (5848, 13962), (6086, 13416), (6708, 12172), (6981, 11696), (7697, 10608), (8592, 9503), (8772, 9308), (8944, 9129)]