28228395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{401}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 51462432

約数和(自身を除く): 23234037

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 361, 401, 741, 1083, 1203, 1235, 1805, 2005, 3705, 4693, 5213, 5415, 6015, 7619, 14079, 15639, 22857, 23465, 26065, 38095, 70395, 78195, 99047, 114285, 144761, 297141, 434283, 495235, 723805, 1485705, 1881893, 2171415, 5645679, 9409465, 28228395]

約数ペア:

[(1, 28228395), (3, 9409465), (5, 5645679), (13, 2171415), (15, 1881893), (19, 1485705), (39, 723805), (57, 495235), (65, 434283), (95, 297141), (195, 144761), (247, 114285), (285, 99047), (361, 78195), (401, 70395), (741, 38095), (1083, 26065), (1203, 23465), (1235, 22857), (1805, 15639), (2005, 14079), (3705, 7619), (4693, 6015), (5213, 5415)]