163809940

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{23879}}^1$

素因数の和:23909

約数の個数: 48

約数和(自身を含む): 401184000

約数和(自身を除く): 237374060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 23879, 47758, 95516, 119395, 167153, 238790, 334306, 477580, 668612, 835765, 1170071, 1671530, 2340142, 3343060, 4680284, 5850355, 8190497, 11700710, 16380994, 23401420, 32761988, 40952485, 81904970, 163809940]

約数ペア:

[(1, 163809940), (2, 81904970), (4, 40952485), (5, 32761988), (7, 23401420), (10, 16380994), (14, 11700710), (20, 8190497), (28, 5850355), (35, 4680284), (49, 3343060), (70, 2340142), (98, 1671530), (140, 1170071), (196, 835765), (245, 668612), (343, 477580), (490, 334306), (686, 238790), (980, 167153), (1372, 119395), (1715, 95516), (3430, 47758), (6860, 23879)]