421765760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:506

約数の個数: 128

約数和(自身を含む): 1096018560

約数和(自身を除く): 674252800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 163, 208, 260, 311, 320, 326, 416, 520, 622, 640, 652, 815, 832, 1040, 1244, 1304, 1555, 1630, 1664, 2080, 2119, 2488, 2608, 3110, 3260, 4043, 4160, 4238, 4976, 5216, 6220, 6520, 8086, 8320, 8476, 9952, 10432, 10595, 12440, 13040, 16172, 16952, 19904, 20215, 20864, 21190, 24880, 26080, 32344, 33904, 39808, 40430, 42380, 49760, 50693, 52160, 64688, 67808, 80860, 84760, 99520, 101386, 104320, 129376, 135616, 161720, 169520, 199040, 202772, 253465, 258752, 271232, 323440, 339040, 405544, 506930, 517504, 646880, 659009, 678080, 811088, 1013860, 1293760, 1318018, 1356160, 1622176, 2027720, 2587520, 2636036, 3244352, 3295045, 4055440, 5272072, 6488704, 6590090, 8110880, 10544144, 13180180, 16221760, 21088288, 26360360, 32443520, 42176576, 52720720, 84353152, 105441440, 210882880, 421765760]

約数ペア:

[(1, 421765760), (2, 210882880), (4, 105441440), (5, 84353152), (8, 52720720), (10, 42176576), (13, 32443520), (16, 26360360), (20, 21088288), (26, 16221760), (32, 13180180), (40, 10544144), (52, 8110880), (64, 6590090), (65, 6488704), (80, 5272072), (104, 4055440), (128, 3295045), (130, 3244352), (160, 2636036), (163, 2587520), (208, 2027720), (260, 1622176), (311, 1356160), (320, 1318018), (326, 1293760), (416, 1013860), (520, 811088), (622, 678080), (640, 659009), (652, 646880), (815, 517504), (832, 506930), (1040, 405544), (1244, 339040), (1304, 323440), (1555, 271232), (1630, 258752), (1664, 253465), (2080, 202772), (2119, 199040), (2488, 169520), (2608, 161720), (3110, 135616), (3260, 129376), (4043, 104320), (4160, 101386), (4238, 99520), (4976, 84760), (5216, 80860), (6220, 67808), (6520, 64688), (8086, 52160), (8320, 50693), (8476, 49760), (9952, 42380), (10432, 40430), (10595, 39808), (12440, 33904), (13040, 32344), (16172, 26080), (16952, 24880), (19904, 21190), (20215, 20864)]