81986720

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22279}}^1$

素因数の和:22317

約数の個数: 48

約数和(自身を含む): 202124160

約数和(自身を除く): 120137440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 22279, 44558, 89116, 111395, 178232, 222790, 356464, 445580, 512417, 712928, 891160, 1024834, 1782320, 2049668, 2562085, 3564640, 4099336, 5124170, 8198672, 10248340, 16397344, 20496680, 40993360, 81986720]

約数ペア:

[(1, 81986720), (2, 40993360), (4, 20496680), (5, 16397344), (8, 10248340), (10, 8198672), (16, 5124170), (20, 4099336), (23, 3564640), (32, 2562085), (40, 2049668), (46, 1782320), (80, 1024834), (92, 891160), (115, 712928), (160, 512417), (184, 445580), (230, 356464), (368, 222790), (460, 178232), (736, 111395), (920, 89116), (1840, 44558), (3680, 22279)]