28345005

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:579

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 27780435

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 45, 65, 93, 117, 135, 155, 195, 279, 351, 403, 465, 521, 585, 837, 1209, 1395, 1563, 1755, 2015, 2605, 3627, 4185, 4689, 6045, 6773, 7815, 10881, 14067, 16151, 18135, 20319, 23445, 33865, 48453, 54405, 60957, 70335, 80755, 101595, 145359, 182871, 209963, 242265, 304785, 436077, 629889, 726795, 914355, 1049815, 1889667, 2180385, 3149445, 5669001, 9448335, 28345005]

約数ペア:

[(1, 28345005), (3, 9448335), (5, 5669001), (9, 3149445), (13, 2180385), (15, 1889667), (27, 1049815), (31, 914355), (39, 726795), (45, 629889), (65, 436077), (93, 304785), (117, 242265), (135, 209963), (155, 182871), (195, 145359), (279, 101595), (351, 80755), (403, 70335), (465, 60957), (521, 54405), (585, 48453), (837, 33865), (1209, 23445), (1395, 20319), (1563, 18135), (1755, 16151), (2015, 14067), (2605, 10881), (3627, 7815), (4185, 6773), (4689, 6045)]