28097865

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 52228800

約数和(自身を除く): 24130935

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 59, 95, 171, 177, 285, 295, 531, 557, 855, 885, 1121, 1671, 2655, 2785, 3363, 5013, 5605, 8355, 10089, 10583, 16815, 25065, 31749, 32863, 50445, 52915, 95247, 98589, 158745, 164315, 295767, 476235, 492945, 624397, 1478835, 1873191, 3121985, 5619573, 9365955, 28097865]

約数ペア:

[(1, 28097865), (3, 9365955), (5, 5619573), (9, 3121985), (15, 1873191), (19, 1478835), (45, 624397), (57, 492945), (59, 476235), (95, 295767), (171, 164315), (177, 158745), (285, 98589), (295, 95247), (531, 52915), (557, 50445), (855, 32863), (885, 31749), (1121, 25065), (1671, 16815), (2655, 10583), (2785, 10089), (3363, 8355), (5013, 5605)]