66401920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:402

約数の個数: 128

約数和(自身を含む): 178899840

約数和(自身を除く): 112497920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 184, 208, 230, 260, 299, 320, 347, 368, 416, 460, 520, 598, 640, 694, 736, 832, 920, 1040, 1196, 1388, 1472, 1495, 1664, 1735, 1840, 2080, 2392, 2776, 2944, 2990, 3470, 3680, 4160, 4511, 4784, 5552, 5980, 6940, 7360, 7981, 8320, 9022, 9568, 11104, 11960, 13880, 14720, 15962, 18044, 19136, 22208, 22555, 23920, 27760, 31924, 36088, 38272, 39905, 44416, 45110, 47840, 55520, 63848, 72176, 79810, 90220, 95680, 103753, 111040, 127696, 144352, 159620, 180440, 191360, 207506, 222080, 255392, 288704, 319240, 360880, 415012, 510784, 518765, 577408, 638480, 721760, 830024, 1021568, 1037530, 1276960, 1443520, 1660048, 2075060, 2553920, 2887040, 3320096, 4150120, 5107840, 6640192, 8300240, 13280384, 16600480, 33200960, 66401920]

約数ペア:

[(1, 66401920), (2, 33200960), (4, 16600480), (5, 13280384), (8, 8300240), (10, 6640192), (13, 5107840), (16, 4150120), (20, 3320096), (23, 2887040), (26, 2553920), (32, 2075060), (40, 1660048), (46, 1443520), (52, 1276960), (64, 1037530), (65, 1021568), (80, 830024), (92, 721760), (104, 638480), (115, 577408), (128, 518765), (130, 510784), (160, 415012), (184, 360880), (208, 319240), (230, 288704), (260, 255392), (299, 222080), (320, 207506), (347, 191360), (368, 180440), (416, 159620), (460, 144352), (520, 127696), (598, 111040), (640, 103753), (694, 95680), (736, 90220), (832, 79810), (920, 72176), (1040, 63848), (1196, 55520), (1388, 47840), (1472, 45110), (1495, 44416), (1664, 39905), (1735, 38272), (1840, 36088), (2080, 31924), (2392, 27760), (2776, 23920), (2944, 22555), (2990, 22208), (3470, 19136), (3680, 18044), (4160, 15962), (4511, 14720), (4784, 13880), (5552, 11960), (5980, 11104), (6940, 9568), (7360, 9022), (7981, 8320)]