80171728

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:165

約数の個数: 160

約数和(自身を含む): 209986560

約数和(自身を除く): 129814832

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 41, 52, 56, 68, 79, 82, 91, 104, 112, 119, 136, 158, 164, 182, 208, 221, 238, 272, 287, 316, 328, 364, 442, 476, 533, 553, 574, 632, 656, 697, 728, 884, 952, 1027, 1066, 1106, 1148, 1264, 1343, 1394, 1456, 1547, 1768, 1904, 2054, 2132, 2212, 2296, 2686, 2788, 3094, 3239, 3536, 3731, 4108, 4264, 4424, 4592, 4879, 5372, 5576, 6188, 6478, 7189, 7462, 8216, 8528, 8848, 9061, 9401, 9758, 10744, 11152, 12376, 12956, 14378, 14924, 16432, 17459, 18122, 18802, 19516, 21488, 22673, 24752, 25912, 28756, 29848, 34918, 36244, 37604, 39032, 42107, 45346, 51824, 55063, 57512, 59696, 63427, 69836, 72488, 75208, 78064, 84214, 90692, 110126, 115024, 122213, 126854, 139672, 144976, 150416, 168428, 181384, 220252, 244426, 253708, 279344, 294749, 336856, 362768, 385441, 440504, 488852, 507416, 589498, 673712, 715819, 770882, 881008, 977704, 1014832, 1178996, 1431638, 1541764, 1955408, 2357992, 2863276, 3083528, 4715984, 5010733, 5726552, 6167056, 10021466, 11453104, 20042932, 40085864, 80171728]

約数ペア:

[(1, 80171728), (2, 40085864), (4, 20042932), (7, 11453104), (8, 10021466), (13, 6167056), (14, 5726552), (16, 5010733), (17, 4715984), (26, 3083528), (28, 2863276), (34, 2357992), (41, 1955408), (52, 1541764), (56, 1431638), (68, 1178996), (79, 1014832), (82, 977704), (91, 881008), (104, 770882), (112, 715819), (119, 673712), (136, 589498), (158, 507416), (164, 488852), (182, 440504), (208, 385441), (221, 362768), (238, 336856), (272, 294749), (287, 279344), (316, 253708), (328, 244426), (364, 220252), (442, 181384), (476, 168428), (533, 150416), (553, 144976), (574, 139672), (632, 126854), (656, 122213), (697, 115024), (728, 110126), (884, 90692), (952, 84214), (1027, 78064), (1066, 75208), (1106, 72488), (1148, 69836), (1264, 63427), (1343, 59696), (1394, 57512), (1456, 55063), (1547, 51824), (1768, 45346), (1904, 42107), (2054, 39032), (2132, 37604), (2212, 36244), (2296, 34918), (2686, 29848), (2788, 28756), (3094, 25912), (3239, 24752), (3536, 22673), (3731, 21488), (4108, 19516), (4264, 18802), (4424, 18122), (4592, 17459), (4879, 16432), (5372, 14924), (5576, 14378), (6188, 12956), (6478, 12376), (7189, 11152), (7462, 10744), (8216, 9758), (8528, 9401), (8848, 9061)]