78721968

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 160

約数和(自身を含む): 238859712

約数和(自身を除く): 160137744

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 34, 39, 41, 48, 51, 52, 68, 78, 82, 102, 104, 123, 136, 156, 164, 181, 204, 208, 221, 246, 272, 312, 328, 362, 408, 442, 492, 533, 543, 624, 656, 663, 697, 724, 816, 884, 984, 1066, 1086, 1326, 1394, 1448, 1599, 1768, 1968, 2091, 2132, 2172, 2353, 2652, 2788, 2896, 3077, 3198, 3536, 4182, 4264, 4344, 4706, 5304, 5576, 6154, 6396, 7059, 7421, 8364, 8528, 8688, 9061, 9231, 9412, 10608, 11152, 12308, 12792, 14118, 14842, 16728, 18122, 18462, 18824, 22263, 24616, 25584, 27183, 28236, 29684, 33456, 36244, 36924, 37648, 40001, 44526, 49232, 54366, 56472, 59368, 72488, 73848, 80002, 89052, 96473, 108732, 112944, 118736, 120003, 126157, 144976, 147696, 160004, 178104, 192946, 217464, 240006, 252314, 289419, 320008, 356208, 378471, 385892, 434928, 480012, 504628, 578838, 640016, 756942, 771784, 960024, 1009256, 1157676, 1513884, 1543568, 1640041, 1920048, 2018512, 2315352, 3027768, 3280082, 4630704, 4920123, 6055536, 6560164, 9840246, 13120328, 19680492, 26240656, 39360984, 78721968]

約数ペア:

[(1, 78721968), (2, 39360984), (3, 26240656), (4, 19680492), (6, 13120328), (8, 9840246), (12, 6560164), (13, 6055536), (16, 4920123), (17, 4630704), (24, 3280082), (26, 3027768), (34, 2315352), (39, 2018512), (41, 1920048), (48, 1640041), (51, 1543568), (52, 1513884), (68, 1157676), (78, 1009256), (82, 960024), (102, 771784), (104, 756942), (123, 640016), (136, 578838), (156, 504628), (164, 480012), (181, 434928), (204, 385892), (208, 378471), (221, 356208), (246, 320008), (272, 289419), (312, 252314), (328, 240006), (362, 217464), (408, 192946), (442, 178104), (492, 160004), (533, 147696), (543, 144976), (624, 126157), (656, 120003), (663, 118736), (697, 112944), (724, 108732), (816, 96473), (884, 89052), (984, 80002), (1066, 73848), (1086, 72488), (1326, 59368), (1394, 56472), (1448, 54366), (1599, 49232), (1768, 44526), (1968, 40001), (2091, 37648), (2132, 36924), (2172, 36244), (2353, 33456), (2652, 29684), (2788, 28236), (2896, 27183), (3077, 25584), (3198, 24616), (3536, 22263), (4182, 18824), (4264, 18462), (4344, 18122), (4706, 16728), (5304, 14842), (5576, 14118), (6154, 12792), (6396, 12308), (7059, 11152), (7421, 10608), (8364, 9412), (8528, 9231), (8688, 9061)]