20495268

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{61}}^2$

素因数の和:155

約数の個数: 90

約数和(自身を含む): 57675618

約数和(自身を除く): 37180350

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 61, 68, 81, 102, 108, 122, 153, 162, 183, 204, 244, 306, 324, 366, 459, 549, 612, 732, 918, 1037, 1098, 1377, 1647, 1836, 2074, 2196, 2754, 3111, 3294, 3721, 4148, 4941, 5508, 6222, 6588, 7442, 9333, 9882, 11163, 12444, 14884, 18666, 19764, 22326, 27999, 33489, 37332, 44652, 55998, 63257, 66978, 83997, 100467, 111996, 126514, 133956, 167994, 189771, 200934, 253028, 301401, 335988, 379542, 401868, 569313, 602802, 759084, 1138626, 1205604, 1707939, 2277252, 3415878, 5123817, 6831756, 10247634, 20495268]

約数ペア:

[(1, 20495268), (2, 10247634), (3, 6831756), (4, 5123817), (6, 3415878), (9, 2277252), (12, 1707939), (17, 1205604), (18, 1138626), (27, 759084), (34, 602802), (36, 569313), (51, 401868), (54, 379542), (61, 335988), (68, 301401), (81, 253028), (102, 200934), (108, 189771), (122, 167994), (153, 133956), (162, 126514), (183, 111996), (204, 100467), (244, 83997), (306, 66978), (324, 63257), (366, 55998), (459, 44652), (549, 37332), (612, 33489), (732, 27999), (918, 22326), (1037, 19764), (1098, 18666), (1377, 14884), (1647, 12444), (1836, 11163), (2074, 9882), (2196, 9333), (2754, 7442), (3111, 6588), (3294, 6222), (3721, 5508), (4148, 4941)]