16640955

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 30351360

約数和(自身を除く): 13710405

約数列:

[1, 3, 5, 9, 15, 31, 45, 79, 93, 151, 155, 237, 279, 395, 453, 465, 711, 755, 1185, 1359, 1395, 2265, 2449, 3555, 4681, 6795, 7347, 11929, 12245, 14043, 22041, 23405, 35787, 36735, 42129, 59645, 70215, 107361, 110205, 178935, 210645, 369799, 536805, 1109397, 1848995, 3328191, 5546985, 16640955]

約数ペア:

[(1, 16640955), (3, 5546985), (5, 3328191), (9, 1848995), (15, 1109397), (31, 536805), (45, 369799), (79, 210645), (93, 178935), (151, 110205), (155, 107361), (237, 70215), (279, 59645), (395, 42129), (453, 36735), (465, 35787), (711, 23405), (755, 22041), (1185, 14043), (1359, 12245), (1395, 11929), (2265, 7347), (2449, 6795), (3555, 4681)]