164627840

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:500

約数の個数: 128

約数和(自身を含む): 433883520

約数和(自身を除く): 269255680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 64, 65, 80, 94, 104, 128, 130, 160, 188, 208, 235, 260, 320, 376, 416, 421, 470, 520, 611, 640, 752, 832, 842, 940, 1040, 1222, 1504, 1664, 1684, 1880, 2080, 2105, 2444, 3008, 3055, 3368, 3760, 4160, 4210, 4888, 5473, 6016, 6110, 6736, 7520, 8320, 8420, 9776, 10946, 12220, 13472, 15040, 16840, 19552, 19787, 21892, 24440, 26944, 27365, 30080, 33680, 39104, 39574, 43784, 48880, 53888, 54730, 67360, 78208, 79148, 87568, 97760, 98935, 109460, 134720, 158296, 175136, 195520, 197870, 218920, 257231, 269440, 316592, 350272, 391040, 395740, 437840, 514462, 633184, 700544, 791480, 875680, 1028924, 1266368, 1286155, 1582960, 1751360, 2057848, 2532736, 2572310, 3165920, 3502720, 4115696, 5144620, 6331840, 8231392, 10289240, 12663680, 16462784, 20578480, 32925568, 41156960, 82313920, 164627840]

約数ペア:

[(1, 164627840), (2, 82313920), (4, 41156960), (5, 32925568), (8, 20578480), (10, 16462784), (13, 12663680), (16, 10289240), (20, 8231392), (26, 6331840), (32, 5144620), (40, 4115696), (47, 3502720), (52, 3165920), (64, 2572310), (65, 2532736), (80, 2057848), (94, 1751360), (104, 1582960), (128, 1286155), (130, 1266368), (160, 1028924), (188, 875680), (208, 791480), (235, 700544), (260, 633184), (320, 514462), (376, 437840), (416, 395740), (421, 391040), (470, 350272), (520, 316592), (611, 269440), (640, 257231), (752, 218920), (832, 197870), (842, 195520), (940, 175136), (1040, 158296), (1222, 134720), (1504, 109460), (1664, 98935), (1684, 97760), (1880, 87568), (2080, 79148), (2105, 78208), (2444, 67360), (3008, 54730), (3055, 53888), (3368, 48880), (3760, 43784), (4160, 39574), (4210, 39104), (4888, 33680), (5473, 30080), (6016, 27365), (6110, 26944), (6736, 24440), (7520, 21892), (8320, 19787), (8420, 19552), (9776, 16840), (10946, 15040), (12220, 13472)]