400710400

素因数分解:

$2^8\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:199

約数の個数: 216

約数和(自身を含む): 1094929920

約数和(自身を除く): 694219520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 29, 32, 34, 40, 50, 58, 64, 68, 80, 85, 100, 116, 127, 128, 136, 145, 160, 170, 200, 232, 254, 256, 272, 290, 320, 340, 400, 425, 464, 493, 508, 544, 580, 635, 640, 680, 725, 800, 850, 928, 986, 1016, 1088, 1160, 1270, 1280, 1360, 1450, 1600, 1700, 1856, 1972, 2032, 2159, 2176, 2320, 2465, 2540, 2720, 2900, 3175, 3200, 3400, 3683, 3712, 3944, 4064, 4318, 4352, 4640, 4930, 5080, 5440, 5800, 6350, 6400, 6800, 7366, 7424, 7888, 8128, 8636, 9280, 9860, 10160, 10795, 10880, 11600, 12325, 12700, 13600, 14732, 15776, 16256, 17272, 18415, 18560, 19720, 20320, 21590, 21760, 23200, 24650, 25400, 27200, 29464, 31552, 32512, 34544, 36830, 37120, 39440, 40640, 43180, 46400, 49300, 50800, 53975, 54400, 58928, 62611, 63104, 69088, 73660, 78880, 81280, 86360, 92075, 92800, 98600, 101600, 107950, 108800, 117856, 125222, 126208, 138176, 147320, 157760, 162560, 172720, 184150, 185600, 197200, 203200, 215900, 235712, 250444, 276352, 294640, 313055, 315520, 345440, 368300, 394400, 406400, 431800, 471424, 500888, 552704, 589280, 626110, 631040, 690880, 736600, 788800, 812800, 863600, 942848, 1001776, 1178560, 1252220, 1381760, 1473200, 1565275, 1577600, 1727200, 2003552, 2357120, 2504440, 2763520, 2946400, 3130550, 3155200, 3454400, 4007104, 4714240, 5008880, 5892800, 6261100, 6908800, 8014208, 10017760, 11785600, 12522200, 13817600, 16028416, 20035520, 23571200, 25044400, 40071040, 50088800, 80142080, 100177600, 200355200, 400710400]

約数ペア:

[(1, 400710400), (2, 200355200), (4, 100177600), (5, 80142080), (8, 50088800), (10, 40071040), (16, 25044400), (17, 23571200), (20, 20035520), (25, 16028416), (29, 13817600), (32, 12522200), (34, 11785600), (40, 10017760), (50, 8014208), (58, 6908800), (64, 6261100), (68, 5892800), (80, 5008880), (85, 4714240), (100, 4007104), (116, 3454400), (127, 3155200), (128, 3130550), (136, 2946400), (145, 2763520), (160, 2504440), (170, 2357120), (200, 2003552), (232, 1727200), (254, 1577600), (256, 1565275), (272, 1473200), (290, 1381760), (320, 1252220), (340, 1178560), (400, 1001776), (425, 942848), (464, 863600), (493, 812800), (508, 788800), (544, 736600), (580, 690880), (635, 631040), (640, 626110), (680, 589280), (725, 552704), (800, 500888), (850, 471424), (928, 431800), (986, 406400), (1016, 394400), (1088, 368300), (1160, 345440), (1270, 315520), (1280, 313055), (1360, 294640), (1450, 276352), (1600, 250444), (1700, 235712), (1856, 215900), (1972, 203200), (2032, 197200), (2159, 185600), (2176, 184150), (2320, 172720), (2465, 162560), (2540, 157760), (2720, 147320), (2900, 138176), (3175, 126208), (3200, 125222), (3400, 117856), (3683, 108800), (3712, 107950), (3944, 101600), (4064, 98600), (4318, 92800), (4352, 92075), (4640, 86360), (4930, 81280), (5080, 78880), (5440, 73660), (5800, 69088), (6350, 63104), (6400, 62611), (6800, 58928), (7366, 54400), (7424, 53975), (7888, 50800), (8128, 49300), (8636, 46400), (9280, 43180), (9860, 40640), (10160, 39440), (10795, 37120), (10880, 36830), (11600, 34544), (12325, 32512), (12700, 31552), (13600, 29464), (14732, 27200), (15776, 25400), (16256, 24650), (17272, 23200), (18415, 21760), (18560, 21590), (19720, 20320)]