20116640

素因数分解:

$2^5\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2131}}^1$

素因数の和:2205

約数の個数: 48

約数和(自身を含む): 48353760

約数和(自身を除く): 28237120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 80, 118, 160, 236, 295, 472, 590, 944, 1180, 1888, 2131, 2360, 4262, 4720, 8524, 9440, 10655, 17048, 21310, 34096, 42620, 68192, 85240, 125729, 170480, 251458, 340960, 502916, 628645, 1005832, 1257290, 2011664, 2514580, 4023328, 5029160, 10058320, 20116640]

約数ペア:

[(1, 20116640), (2, 10058320), (4, 5029160), (5, 4023328), (8, 2514580), (10, 2011664), (16, 1257290), (20, 1005832), (32, 628645), (40, 502916), (59, 340960), (80, 251458), (118, 170480), (160, 125729), (236, 85240), (295, 68192), (472, 42620), (590, 34096), (944, 21310), (1180, 17048), (1888, 10655), (2131, 9440), (2360, 8524), (4262, 4720)]