18828525

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 33400640

約数和(自身を除く): 14572115

約数列:

[1, 3, 5, 15, 19, 25, 57, 73, 75, 95, 181, 219, 285, 365, 475, 543, 905, 1095, 1387, 1425, 1825, 2715, 3439, 4161, 4525, 5475, 6935, 10317, 13213, 13575, 17195, 20805, 34675, 39639, 51585, 66065, 85975, 104025, 198195, 251047, 257925, 330325, 753141, 990975, 1255235, 3765705, 6276175, 18828525]

約数ペア:

[(1, 18828525), (3, 6276175), (5, 3765705), (15, 1255235), (19, 990975), (25, 753141), (57, 330325), (73, 257925), (75, 251047), (95, 198195), (181, 104025), (219, 85975), (285, 66065), (365, 51585), (475, 39639), (543, 34675), (905, 20805), (1095, 17195), (1387, 13575), (1425, 13213), (1825, 10317), (2715, 6935), (3439, 5475), (4161, 4525)]