81508336

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 160

約数和(自身を含む): 213736320

約数和(自身を除く): 132227984

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 37, 52, 56, 68, 74, 89, 91, 104, 112, 119, 136, 148, 178, 182, 208, 221, 238, 259, 272, 296, 356, 364, 442, 476, 481, 518, 592, 623, 629, 712, 728, 884, 952, 962, 1036, 1157, 1246, 1258, 1424, 1456, 1513, 1547, 1768, 1904, 1924, 2072, 2314, 2492, 2516, 3026, 3094, 3293, 3367, 3536, 3848, 4144, 4403, 4628, 4984, 5032, 6052, 6188, 6586, 6734, 7696, 8099, 8177, 8806, 9256, 9968, 10064, 10591, 12104, 12376, 13172, 13468, 16198, 16354, 17612, 18512, 19669, 21182, 23051, 24208, 24752, 26344, 26936, 32396, 32708, 35224, 39338, 42364, 42809, 46102, 52688, 53872, 55981, 57239, 64792, 65416, 70448, 78676, 84728, 85618, 92204, 111962, 114478, 129584, 130832, 137683, 157352, 169456, 171236, 184408, 223924, 228956, 275366, 299663, 314704, 342472, 368816, 391867, 447848, 457912, 550732, 599326, 684944, 727753, 783734, 895696, 915824, 1101464, 1198652, 1455506, 1567468, 2202928, 2397304, 2911012, 3134936, 4794608, 5094271, 5822024, 6269872, 10188542, 11644048, 20377084, 40754168, 81508336]

約数ペア:

[(1, 81508336), (2, 40754168), (4, 20377084), (7, 11644048), (8, 10188542), (13, 6269872), (14, 5822024), (16, 5094271), (17, 4794608), (26, 3134936), (28, 2911012), (34, 2397304), (37, 2202928), (52, 1567468), (56, 1455506), (68, 1198652), (74, 1101464), (89, 915824), (91, 895696), (104, 783734), (112, 727753), (119, 684944), (136, 599326), (148, 550732), (178, 457912), (182, 447848), (208, 391867), (221, 368816), (238, 342472), (259, 314704), (272, 299663), (296, 275366), (356, 228956), (364, 223924), (442, 184408), (476, 171236), (481, 169456), (518, 157352), (592, 137683), (623, 130832), (629, 129584), (712, 114478), (728, 111962), (884, 92204), (952, 85618), (962, 84728), (1036, 78676), (1157, 70448), (1246, 65416), (1258, 64792), (1424, 57239), (1456, 55981), (1513, 53872), (1547, 52688), (1768, 46102), (1904, 42809), (1924, 42364), (2072, 39338), (2314, 35224), (2492, 32708), (2516, 32396), (3026, 26936), (3094, 26344), (3293, 24752), (3367, 24208), (3536, 23051), (3848, 21182), (4144, 19669), (4403, 18512), (4628, 17612), (4984, 16354), (5032, 16198), (6052, 13468), (6188, 13172), (6586, 12376), (6734, 12104), (7696, 10591), (8099, 10064), (8177, 9968), (8806, 9256)]