28904715

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{419}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 59673600

約数和(自身を除く): 30768885

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 73, 105, 135, 189, 219, 315, 365, 419, 511, 657, 945, 1095, 1257, 1533, 1971, 2095, 2555, 2933, 3285, 3771, 4599, 6285, 7665, 8799, 9855, 11313, 13797, 14665, 18855, 22995, 26397, 30587, 43995, 56565, 68985, 79191, 91761, 131985, 152935, 214109, 275283, 395955, 458805, 642327, 825849, 1070545, 1376415, 1926981, 3211635, 4129245, 5780943, 9634905, 28904715]

約数ペア:

[(1, 28904715), (3, 9634905), (5, 5780943), (7, 4129245), (9, 3211635), (15, 1926981), (21, 1376415), (27, 1070545), (35, 825849), (45, 642327), (63, 458805), (73, 395955), (105, 275283), (135, 214109), (189, 152935), (219, 131985), (315, 91761), (365, 79191), (419, 68985), (511, 56565), (657, 43995), (945, 30587), (1095, 26397), (1257, 22995), (1533, 18855), (1971, 14665), (2095, 13797), (2555, 11313), (2933, 9855), (3285, 8799), (3771, 7665), (4599, 6285)]