28338765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1597}}^1$

素因数の和:1638

約数の個数: 48

約数和(自身を含む): 56147328

約数和(自身を除く): 27808563

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 169, 195, 273, 455, 507, 845, 1183, 1365, 1597, 2535, 3549, 4791, 5915, 7985, 11179, 17745, 20761, 23955, 33537, 55895, 62283, 103805, 145327, 167685, 269893, 311415, 435981, 726635, 809679, 1349465, 1889251, 2179905, 4048395, 5667753, 9446255, 28338765]

約数ペア:

[(1, 28338765), (3, 9446255), (5, 5667753), (7, 4048395), (13, 2179905), (15, 1889251), (21, 1349465), (35, 809679), (39, 726635), (65, 435981), (91, 311415), (105, 269893), (169, 167685), (195, 145327), (273, 103805), (455, 62283), (507, 55895), (845, 33537), (1183, 23955), (1365, 20761), (1597, 17745), (2535, 11179), (3549, 7985), (4791, 5915)]