28672605

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2131}}^1$

素因数の和:2178

約数の個数: 48

約数和(自身を含む): 55875456

約数和(自身を除く): 27202851

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 2131, 2691, 4485, 6393, 10655, 13455, 19179, 27703, 31965, 49013, 83109, 95895, 138515, 147039, 245065, 249327, 415545, 441117, 637169, 735195, 1246635, 1911507, 2205585, 3185845, 5734521, 9557535, 28672605]

約数ペア:

[(1, 28672605), (3, 9557535), (5, 5734521), (9, 3185845), (13, 2205585), (15, 1911507), (23, 1246635), (39, 735195), (45, 637169), (65, 441117), (69, 415545), (115, 249327), (117, 245065), (195, 147039), (207, 138515), (299, 95895), (345, 83109), (585, 49013), (897, 31965), (1035, 27703), (1495, 19179), (2131, 13455), (2691, 10655), (4485, 6393)]