4256140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 10744272

約数和(自身を除く): 6488132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 101, 140, 172, 196, 202, 215, 245, 301, 404, 430, 490, 505, 602, 707, 860, 980, 1010, 1204, 1414, 1505, 2020, 2107, 2828, 3010, 3535, 4214, 4343, 4949, 6020, 7070, 8428, 8686, 9898, 10535, 14140, 17372, 19796, 21070, 21715, 24745, 30401, 42140, 43430, 49490, 60802, 86860, 98980, 121604, 152005, 212807, 304010, 425614, 608020, 851228, 1064035, 2128070, 4256140]

約数ペア:

[(1, 4256140), (2, 2128070), (4, 1064035), (5, 851228), (7, 608020), (10, 425614), (14, 304010), (20, 212807), (28, 152005), (35, 121604), (43, 98980), (49, 86860), (70, 60802), (86, 49490), (98, 43430), (101, 42140), (140, 30401), (172, 24745), (196, 21715), (202, 21070), (215, 19796), (245, 17372), (301, 14140), (404, 10535), (430, 9898), (490, 8686), (505, 8428), (602, 7070), (707, 6020), (860, 4949), (980, 4343), (1010, 4214), (1204, 3535), (1414, 3010), (1505, 2828), (2020, 2107)]