20505472

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12323}}^1$

素因数の和:12350

約数の個数: 32

約数和(自身を含む): 43996680

約数和(自身を除く): 23491208

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12323, 24646, 49292, 98584, 160199, 197168, 320398, 394336, 640796, 788672, 1281592, 1577344, 2563184, 5126368, 10252736, 20505472]

約数ペア:

[(1, 20505472), (2, 10252736), (4, 5126368), (8, 2563184), (13, 1577344), (16, 1281592), (26, 788672), (32, 640796), (52, 394336), (64, 320398), (104, 197168), (128, 160199), (208, 98584), (416, 49292), (832, 24646), (1664, 12323)]