80145520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 160

約数和(自身を含む): 233735040

約数和(自身を除く): 153589520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 101, 104, 109, 112, 130, 140, 182, 202, 208, 218, 260, 280, 364, 404, 436, 455, 505, 520, 545, 560, 707, 728, 763, 808, 872, 910, 1010, 1040, 1090, 1313, 1414, 1417, 1456, 1526, 1616, 1744, 1820, 2020, 2180, 2626, 2828, 2834, 3052, 3535, 3640, 3815, 4040, 4360, 5252, 5656, 5668, 6104, 6565, 7070, 7085, 7280, 7630, 8080, 8720, 9191, 9919, 10504, 11009, 11312, 11336, 12208, 13130, 14140, 14170, 15260, 18382, 19838, 21008, 22018, 22672, 26260, 28280, 28340, 30520, 36764, 39676, 44036, 45955, 49595, 52520, 55045, 56560, 56680, 61040, 73528, 77063, 79352, 88072, 91910, 99190, 105040, 110090, 113360, 143117, 147056, 154126, 158704, 176144, 183820, 198380, 220180, 286234, 308252, 367640, 385315, 396760, 440360, 572468, 616504, 715585, 735280, 770630, 793520, 880720, 1001819, 1144936, 1233008, 1431170, 1541260, 2003638, 2289872, 2862340, 3082520, 4007276, 5009095, 5724680, 6165040, 8014552, 10018190, 11449360, 16029104, 20036380, 40072760, 80145520]

約数ペア:

[(1, 80145520), (2, 40072760), (4, 20036380), (5, 16029104), (7, 11449360), (8, 10018190), (10, 8014552), (13, 6165040), (14, 5724680), (16, 5009095), (20, 4007276), (26, 3082520), (28, 2862340), (35, 2289872), (40, 2003638), (52, 1541260), (56, 1431170), (65, 1233008), (70, 1144936), (80, 1001819), (91, 880720), (101, 793520), (104, 770630), (109, 735280), (112, 715585), (130, 616504), (140, 572468), (182, 440360), (202, 396760), (208, 385315), (218, 367640), (260, 308252), (280, 286234), (364, 220180), (404, 198380), (436, 183820), (455, 176144), (505, 158704), (520, 154126), (545, 147056), (560, 143117), (707, 113360), (728, 110090), (763, 105040), (808, 99190), (872, 91910), (910, 88072), (1010, 79352), (1040, 77063), (1090, 73528), (1313, 61040), (1414, 56680), (1417, 56560), (1456, 55045), (1526, 52520), (1616, 49595), (1744, 45955), (1820, 44036), (2020, 39676), (2180, 36764), (2626, 30520), (2828, 28340), (2834, 28280), (3052, 26260), (3535, 22672), (3640, 22018), (3815, 21008), (4040, 19838), (4360, 18382), (5252, 15260), (5656, 14170), (5668, 14140), (6104, 13130), (6565, 12208), (7070, 11336), (7085, 11312), (7280, 11009), (7630, 10504), (8080, 9919), (8720, 9191)]