28161705

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 55802880

約数和(自身を除く): 27641175

約数列:

[1, 3, 5, 11, 13, 15, 19, 33, 39, 55, 57, 65, 95, 143, 165, 195, 209, 247, 285, 429, 627, 691, 715, 741, 1045, 1235, 2073, 2145, 2717, 3135, 3455, 3705, 7601, 8151, 8983, 10365, 13129, 13585, 22803, 26949, 38005, 39387, 40755, 44915, 65645, 98813, 114015, 134745, 144419, 170677, 196935, 296439, 433257, 494065, 512031, 722095, 853385, 1482195, 1877447, 2166285, 2560155, 5632341, 9387235, 28161705]

約数ペア:

[(1, 28161705), (3, 9387235), (5, 5632341), (11, 2560155), (13, 2166285), (15, 1877447), (19, 1482195), (33, 853385), (39, 722095), (55, 512031), (57, 494065), (65, 433257), (95, 296439), (143, 196935), (165, 170677), (195, 144419), (209, 134745), (247, 114015), (285, 98813), (429, 65645), (627, 44915), (691, 40755), (715, 39387), (741, 38005), (1045, 26949), (1235, 22803), (2073, 13585), (2145, 13129), (2717, 10365), (3135, 8983), (3455, 8151), (3705, 7601)]