31931685

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 61056000

約数和(自身を除く): 29124315

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 59, 95, 135, 171, 177, 211, 285, 295, 513, 531, 633, 855, 885, 1055, 1121, 1593, 1899, 2565, 2655, 3165, 3363, 4009, 5605, 5697, 7965, 9495, 10089, 12027, 12449, 16815, 20045, 28485, 30267, 36081, 37347, 50445, 60135, 62245, 108243, 112041, 151335, 180405, 186735, 236531, 336123, 541215, 560205, 709593, 1182655, 1680615, 2128779, 3547965, 6386337, 10643895, 31931685]

約数ペア:

[(1, 31931685), (3, 10643895), (5, 6386337), (9, 3547965), (15, 2128779), (19, 1680615), (27, 1182655), (45, 709593), (57, 560205), (59, 541215), (95, 336123), (135, 236531), (171, 186735), (177, 180405), (211, 151335), (285, 112041), (295, 108243), (513, 62245), (531, 60135), (633, 50445), (855, 37347), (885, 36081), (1055, 30267), (1121, 28485), (1593, 20045), (1899, 16815), (2565, 12449), (2655, 12027), (3165, 10089), (3363, 9495), (4009, 7965), (5605, 5697)]