31781584

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1289}}^1$

素因数の和:1387

約数の個数: 40

約数和(自身を含む): 65263680

約数和(自身を除く): 33482096

約数列:

[1, 2, 4, 8, 16, 23, 46, 67, 92, 134, 184, 268, 368, 536, 1072, 1289, 1541, 2578, 3082, 5156, 6164, 10312, 12328, 20624, 24656, 29647, 59294, 86363, 118588, 172726, 237176, 345452, 474352, 690904, 1381808, 1986349, 3972698, 7945396, 15890792, 31781584]

約数ペア:

[(1, 31781584), (2, 15890792), (4, 7945396), (8, 3972698), (16, 1986349), (23, 1381808), (46, 690904), (67, 474352), (92, 345452), (134, 237176), (184, 172726), (268, 118588), (368, 86363), (536, 59294), (1072, 29647), (1289, 24656), (1541, 20624), (2578, 12328), (3082, 10312), (5156, 6164)]