25801515

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 47331648

約数和(自身を除く): 21530133

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 97, 115, 207, 257, 291, 345, 485, 771, 873, 1035, 1285, 1455, 2231, 2313, 3855, 4365, 5911, 6693, 11155, 11565, 17733, 20079, 24929, 29555, 33465, 53199, 74787, 88665, 100395, 124645, 224361, 265995, 373935, 573367, 1121805, 1720101, 2866835, 5160303, 8600505, 25801515]

約数ペア:

[(1, 25801515), (3, 8600505), (5, 5160303), (9, 2866835), (15, 1720101), (23, 1121805), (45, 573367), (69, 373935), (97, 265995), (115, 224361), (207, 124645), (257, 100395), (291, 88665), (345, 74787), (485, 53199), (771, 33465), (873, 29555), (1035, 24929), (1285, 20079), (1455, 17733), (2231, 11565), (2313, 11155), (3855, 6693), (4365, 5911)]