17779420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{7867}}^1$

素因数の和:7989

約数の個数: 24

約数和(自身を含む): 37671984

約数和(自身を除く): 19892564

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 7867, 15734, 31468, 39335, 78670, 157340, 888971, 1777942, 3555884, 4444855, 8889710, 17779420]

約数ペア:

[(1, 17779420), (2, 8889710), (4, 4444855), (5, 3555884), (10, 1777942), (20, 888971), (113, 157340), (226, 78670), (452, 39335), (565, 31468), (1130, 15734), (2260, 7867)]