20175343375

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:466

約数の個数: 96

約数和(自身を含む): 28646182656

約数和(自身を除く): 8470839281

約数列:

[1, 5, 11, 25, 47, 55, 101, 121, 125, 235, 275, 281, 505, 517, 605, 1111, 1175, 1375, 1405, 2525, 2585, 3025, 3091, 4747, 5555, 5687, 5875, 7025, 12221, 12625, 12925, 13207, 15125, 15455, 23735, 27775, 28381, 28435, 34001, 35125, 52217, 61105, 64625, 66035, 77275, 118675, 138875, 141905, 142175, 145277, 170005, 261085, 305525, 312191, 330175, 386375, 574387, 593375, 709525, 710875, 726385, 850025, 1305425, 1333907, 1527625, 1560955, 1598047, 1650875, 2871935, 3434101, 3547625, 3631925, 4250125, 6527125, 6669535, 7804775, 7990235, 14359675, 14672977, 17170505, 18159625, 33347675, 39023875, 39951175, 71798375, 73364885, 85852525, 161402747, 166738375, 199755875, 366824425, 429262625, 807013735, 1834122125, 4035068675, 20175343375]

約数ペア:

[(1, 20175343375), (5, 4035068675), (11, 1834122125), (25, 807013735), (47, 429262625), (55, 366824425), (101, 199755875), (121, 166738375), (125, 161402747), (235, 85852525), (275, 73364885), (281, 71798375), (505, 39951175), (517, 39023875), (605, 33347675), (1111, 18159625), (1175, 17170505), (1375, 14672977), (1405, 14359675), (2525, 7990235), (2585, 7804775), (3025, 6669535), (3091, 6527125), (4747, 4250125), (5555, 3631925), (5687, 3547625), (5875, 3434101), (7025, 2871935), (12221, 1650875), (12625, 1598047), (12925, 1560955), (13207, 1527625), (15125, 1333907), (15455, 1305425), (23735, 850025), (27775, 726385), (28381, 710875), (28435, 709525), (34001, 593375), (35125, 574387), (52217, 386375), (61105, 330175), (64625, 312191), (66035, 305525), (77275, 261085), (118675, 170005), (138875, 145277), (141905, 142175)]