25140195

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 47005920

約数和(自身を除く): 21865725

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 59, 85, 153, 177, 255, 295, 531, 557, 765, 885, 1003, 1671, 2655, 2785, 3009, 5013, 5015, 8355, 9027, 9469, 15045, 25065, 28407, 32863, 45135, 47345, 85221, 98589, 142035, 164315, 295767, 426105, 492945, 558671, 1478835, 1676013, 2793355, 5028039, 8380065, 25140195]

約数ペア:

[(1, 25140195), (3, 8380065), (5, 5028039), (9, 2793355), (15, 1676013), (17, 1478835), (45, 558671), (51, 492945), (59, 426105), (85, 295767), (153, 164315), (177, 142035), (255, 98589), (295, 85221), (531, 47345), (557, 45135), (765, 32863), (885, 28407), (1003, 25065), (1671, 15045), (2655, 9469), (2785, 9027), (3009, 8355), (5013, 5015)]