77661440

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 203974848

約数和(自身を除く): 126313408

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 64, 68, 80, 83, 85, 86, 128, 136, 160, 166, 170, 172, 215, 256, 272, 320, 332, 340, 344, 415, 430, 544, 640, 664, 680, 688, 731, 830, 860, 1088, 1280, 1328, 1360, 1376, 1411, 1462, 1660, 1720, 2176, 2656, 2720, 2752, 2822, 2924, 3320, 3440, 3569, 3655, 4352, 5312, 5440, 5504, 5644, 5848, 6640, 6880, 7055, 7138, 7310, 10624, 10880, 11008, 11288, 11696, 13280, 13760, 14110, 14276, 14620, 17845, 21248, 21760, 22576, 23392, 26560, 27520, 28220, 28552, 29240, 35690, 45152, 46784, 53120, 55040, 56440, 57104, 58480, 60673, 71380, 90304, 93568, 106240, 112880, 114208, 116960, 121346, 142760, 180608, 187136, 225760, 228416, 233920, 242692, 285520, 303365, 361216, 451520, 456832, 467840, 485384, 571040, 606730, 903040, 913664, 935680, 970768, 1142080, 1213460, 1806080, 1941536, 2284160, 2426920, 3883072, 4568320, 4853840, 7766144, 9707680, 15532288, 19415360, 38830720, 77661440]

約数ペア:

[(1, 77661440), (2, 38830720), (4, 19415360), (5, 15532288), (8, 9707680), (10, 7766144), (16, 4853840), (17, 4568320), (20, 3883072), (32, 2426920), (34, 2284160), (40, 1941536), (43, 1806080), (64, 1213460), (68, 1142080), (80, 970768), (83, 935680), (85, 913664), (86, 903040), (128, 606730), (136, 571040), (160, 485384), (166, 467840), (170, 456832), (172, 451520), (215, 361216), (256, 303365), (272, 285520), (320, 242692), (332, 233920), (340, 228416), (344, 225760), (415, 187136), (430, 180608), (544, 142760), (640, 121346), (664, 116960), (680, 114208), (688, 112880), (731, 106240), (830, 93568), (860, 90304), (1088, 71380), (1280, 60673), (1328, 58480), (1360, 57104), (1376, 56440), (1411, 55040), (1462, 53120), (1660, 46784), (1720, 45152), (2176, 35690), (2656, 29240), (2720, 28552), (2752, 28220), (2822, 27520), (2924, 26560), (3320, 23392), (3440, 22576), (3569, 21760), (3655, 21248), (4352, 17845), (5312, 14620), (5440, 14276), (5504, 14110), (5644, 13760), (5848, 13280), (6640, 11696), (6880, 11288), (7055, 11008), (7138, 10880), (7310, 10624)]