221464780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{15887}}^1$

素因数の和:15954

約数の個数: 48

約数和(自身を含む): 504475776

約数和(自身を除く): 283010996

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 2788, 3485, 6970, 13940, 15887, 31774, 63548, 79435, 158870, 270079, 317740, 540158, 651367, 1080316, 1302734, 1350395, 2605468, 2700790, 3256835, 5401580, 6513670, 11073239, 13027340, 22146478, 44292956, 55366195, 110732390, 221464780]

約数ペア:

[(1, 221464780), (2, 110732390), (4, 55366195), (5, 44292956), (10, 22146478), (17, 13027340), (20, 11073239), (34, 6513670), (41, 5401580), (68, 3256835), (82, 2700790), (85, 2605468), (164, 1350395), (170, 1302734), (205, 1080316), (340, 651367), (410, 540158), (697, 317740), (820, 270079), (1394, 158870), (2788, 79435), (3485, 63548), (6970, 31774), (13940, 15887)]