209998980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{129629}}^1$

素因数の和:129650

約数の個数: 60

約数和(自身を含む): 658779660

約数和(自身を除く): 448780680

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 129629, 259258, 388887, 518516, 648145, 777774, 1166661, 1296290, 1555548, 1944435, 2333322, 2592580, 3499983, 3888870, 4666644, 5833305, 6999966, 7777740, 10499949, 11666610, 13999932, 17499915, 20999898, 23333220, 34999830, 41999796, 52499745, 69999660, 104999490, 209998980]

約数ペア:

[(1, 209998980), (2, 104999490), (3, 69999660), (4, 52499745), (5, 41999796), (6, 34999830), (9, 23333220), (10, 20999898), (12, 17499915), (15, 13999932), (18, 11666610), (20, 10499949), (27, 7777740), (30, 6999966), (36, 5833305), (45, 4666644), (54, 3888870), (60, 3499983), (81, 2592580), (90, 2333322), (108, 1944435), (135, 1555548), (162, 1296290), (180, 1166661), (270, 777774), (324, 648145), (405, 518516), (540, 388887), (810, 259258), (1620, 129629)]