28384520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11633}}^1$

素因数の和:11705

約数の個数: 32

約数和(自身を含む): 64917720

約数和(自身を除く): 36533200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11633, 23266, 46532, 58165, 93064, 116330, 232660, 465320, 709613, 1419226, 2838452, 3548065, 5676904, 7096130, 14192260, 28384520]

約数ペア:

[(1, 28384520), (2, 14192260), (4, 7096130), (5, 5676904), (8, 3548065), (10, 2838452), (20, 1419226), (40, 709613), (61, 465320), (122, 232660), (244, 116330), (305, 93064), (488, 58165), (610, 46532), (1220, 23266), (2440, 11633)]