28130895

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 55154736

約数和(自身を除く): 27023841

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 137, 169, 195, 243, 351, 405, 411, 507, 585, 685, 845, 1053, 1215, 1233, 1521, 1755, 1781, 2055, 2535, 3159, 3699, 4563, 5265, 5343, 6165, 7605, 8905, 11097, 13689, 15795, 16029, 18495, 22815, 23153, 26715, 33291, 41067, 48087, 55485, 68445, 69459, 80145, 115765, 144261, 166455, 205335, 208377, 240435, 347295, 432783, 625131, 721305, 1041885, 1875393, 2163915, 3125655, 5626179, 9376965, 28130895]

約数ペア:

[(1, 28130895), (3, 9376965), (5, 5626179), (9, 3125655), (13, 2163915), (15, 1875393), (27, 1041885), (39, 721305), (45, 625131), (65, 432783), (81, 347295), (117, 240435), (135, 208377), (137, 205335), (169, 166455), (195, 144261), (243, 115765), (351, 80145), (405, 69459), (411, 68445), (507, 55485), (585, 48087), (685, 41067), (845, 33291), (1053, 26715), (1215, 23153), (1233, 22815), (1521, 18495), (1755, 16029), (1781, 15795), (2055, 13689), (2535, 11097), (3159, 8905), (3699, 7605), (4563, 6165), (5265, 5343)]