2021849140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{20771}}^1$

素因数の和:20968

約数の個数: 48

約数和(自身を含む): 4410975744

約数和(自身を除く): 2389126604

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 310, 314, 620, 628, 785, 1570, 3140, 4867, 9734, 19468, 20771, 24335, 41542, 48670, 83084, 97340, 103855, 207710, 415420, 643901, 1287802, 2575604, 3219505, 3261047, 6439010, 6522094, 12878020, 13044188, 16305235, 32610470, 65220940, 101092457, 202184914, 404369828, 505462285, 1010924570, 2021849140]

約数ペア:

[(1, 2021849140), (2, 1010924570), (4, 505462285), (5, 404369828), (10, 202184914), (20, 101092457), (31, 65220940), (62, 32610470), (124, 16305235), (155, 13044188), (157, 12878020), (310, 6522094), (314, 6439010), (620, 3261047), (628, 3219505), (785, 2575604), (1570, 1287802), (3140, 643901), (4867, 415420), (9734, 207710), (19468, 103855), (20771, 97340), (24335, 83084), (41542, 48670)]