28736820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22807}}^1$

素因数の和:22829

約数の個数: 72

約数和(自身を含む): 99625344

約数和(自身を除く): 70888524

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22807, 45614, 68421, 91228, 114035, 136842, 159649, 205263, 228070, 273684, 319298, 342105, 410526, 456140, 478947, 638596, 684210, 798245, 821052, 957894, 1026315, 1368420, 1436841, 1596490, 1915788, 2052630, 2394735, 2873682, 3192980, 4105260, 4789470, 5747364, 7184205, 9578940, 14368410, 28736820]

約数ペア:

[(1, 28736820), (2, 14368410), (3, 9578940), (4, 7184205), (5, 5747364), (6, 4789470), (7, 4105260), (9, 3192980), (10, 2873682), (12, 2394735), (14, 2052630), (15, 1915788), (18, 1596490), (20, 1436841), (21, 1368420), (28, 1026315), (30, 957894), (35, 821052), (36, 798245), (42, 684210), (45, 638596), (60, 478947), (63, 456140), (70, 410526), (84, 342105), (90, 319298), (105, 273684), (126, 228070), (140, 205263), (180, 159649), (210, 136842), (252, 114035), (315, 91228), (420, 68421), (630, 45614), (1260, 22807)]