221460020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{2081}}^1$

素因数の和:2420

約数の個数: 48

約数和(自身を含む): 494233488

約数和(自身を除く): 272773468

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 313, 340, 626, 1252, 1565, 2081, 3130, 4162, 5321, 6260, 8324, 10405, 10642, 20810, 21284, 26605, 35377, 41620, 53210, 70754, 106420, 141508, 176885, 353770, 651353, 707540, 1302706, 2605412, 3256765, 6513530, 11073001, 13027060, 22146002, 44292004, 55365005, 110730010, 221460020]

約数ペア:

[(1, 221460020), (2, 110730010), (4, 55365005), (5, 44292004), (10, 22146002), (17, 13027060), (20, 11073001), (34, 6513530), (68, 3256765), (85, 2605412), (170, 1302706), (313, 707540), (340, 651353), (626, 353770), (1252, 176885), (1565, 141508), (2081, 106420), (3130, 70754), (4162, 53210), (5321, 41620), (6260, 35377), (8324, 26605), (10405, 21284), (10642, 20810)]