308840320

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20981}}^1$

素因数の和:21023

約数の個数: 64

約数和(自身を含む): 770459040

約数和(自身を除く): 461618720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2944, 3680, 7360, 14720, 20981, 41962, 83924, 104905, 167848, 209810, 335696, 419620, 482563, 671392, 839240, 965126, 1342784, 1678480, 1930252, 2412815, 2685568, 3356960, 3860504, 4825630, 6713920, 7721008, 9651260, 13427840, 15442016, 19302520, 30884032, 38605040, 61768064, 77210080, 154420160, 308840320]

約数ペア:

[(1, 308840320), (2, 154420160), (4, 77210080), (5, 61768064), (8, 38605040), (10, 30884032), (16, 19302520), (20, 15442016), (23, 13427840), (32, 9651260), (40, 7721008), (46, 6713920), (64, 4825630), (80, 3860504), (92, 3356960), (115, 2685568), (128, 2412815), (160, 1930252), (184, 1678480), (230, 1342784), (320, 965126), (368, 839240), (460, 671392), (640, 482563), (736, 419620), (920, 335696), (1472, 209810), (1840, 167848), (2944, 104905), (3680, 83924), (7360, 41962), (14720, 20981)]