405756

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:60

約数の個数: 72

約数和(自身を含む): 1203440

約数和(自身を除く): 797684

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 27, 34, 36, 39, 51, 52, 54, 68, 78, 102, 108, 117, 153, 156, 204, 221, 234, 289, 306, 351, 442, 459, 468, 578, 612, 663, 702, 867, 884, 918, 1156, 1326, 1404, 1734, 1836, 1989, 2601, 2652, 3468, 3757, 3978, 5202, 5967, 7514, 7803, 7956, 10404, 11271, 11934, 15028, 15606, 22542, 23868, 31212, 33813, 45084, 67626, 101439, 135252, 202878, 405756]

約数ペア:

[(1, 405756), (2, 202878), (3, 135252), (4, 101439), (6, 67626), (9, 45084), (12, 33813), (13, 31212), (17, 23868), (18, 22542), (26, 15606), (27, 15028), (34, 11934), (36, 11271), (39, 10404), (51, 7956), (52, 7803), (54, 7514), (68, 5967), (78, 5202), (102, 3978), (108, 3757), (117, 3468), (153, 2652), (156, 2601), (204, 1989), (221, 1836), (234, 1734), (289, 1404), (306, 1326), (351, 1156), (442, 918), (459, 884), (468, 867), (578, 702), (612, 663)]