1994403880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1017553}}^1$

素因数の和:1017578

約数の個数: 48

約数和(自身を含む): 5220052020

約数和(自身を除く): 3225648140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 1017553, 2035106, 4070212, 5087765, 7122871, 8140424, 10175530, 14245742, 20351060, 28491484, 35614355, 40702120, 49860097, 56982968, 71228710, 99720194, 142457420, 199440388, 249300485, 284914840, 398880776, 498600970, 997201940, 1994403880]

約数ペア:

[(1, 1994403880), (2, 997201940), (4, 498600970), (5, 398880776), (7, 284914840), (8, 249300485), (10, 199440388), (14, 142457420), (20, 99720194), (28, 71228710), (35, 56982968), (40, 49860097), (49, 40702120), (56, 35614355), (70, 28491484), (98, 20351060), (140, 14245742), (196, 10175530), (245, 8140424), (280, 7122871), (392, 5087765), (490, 4070212), (980, 2035106), (1960, 1017553)]