25045990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2161}}^1$

素因数の和:2248

約数の個数: 32

約数和(自身を含む): 48255840

約数和(自身を除く): 23209850

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 2161, 2318, 4322, 5795, 10805, 11590, 21610, 41059, 82118, 131821, 205295, 263642, 410590, 659105, 1318210, 2504599, 5009198, 12522995, 25045990]

約数ペア:

[(1, 25045990), (2, 12522995), (5, 5009198), (10, 2504599), (19, 1318210), (38, 659105), (61, 410590), (95, 263642), (122, 205295), (190, 131821), (305, 82118), (610, 41059), (1159, 21610), (2161, 11590), (2318, 10805), (4322, 5795)]