131191696

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{509}}^1$

素因数の和:787

約数の個数: 40

約数和(自身を含む): 258967800

約数和(自身を除く): 127776104

約数列:

[1, 2, 4, 8, 16, 89, 178, 181, 356, 362, 509, 712, 724, 1018, 1424, 1448, 2036, 2896, 4072, 8144, 16109, 32218, 45301, 64436, 90602, 92129, 128872, 181204, 184258, 257744, 362408, 368516, 724816, 737032, 1474064, 8199481, 16398962, 32797924, 65595848, 131191696]

約数ペア:

[(1, 131191696), (2, 65595848), (4, 32797924), (8, 16398962), (16, 8199481), (89, 1474064), (178, 737032), (181, 724816), (356, 368516), (362, 362408), (509, 257744), (712, 184258), (724, 181204), (1018, 128872), (1424, 92129), (1448, 90602), (2036, 64436), (2896, 45301), (4072, 32218), (8144, 16109)]