80491996

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 165279744

約数和(自身を除く): 84787748

約数列:

[1, 2, 4, 13, 23, 26, 31, 46, 52, 62, 92, 124, 167, 169, 299, 334, 338, 403, 598, 668, 676, 713, 806, 1196, 1426, 1612, 2171, 2852, 3841, 3887, 4342, 5177, 5239, 7682, 7774, 8684, 9269, 10354, 10478, 15364, 15548, 18538, 20708, 20956, 28223, 37076, 49933, 56446, 67301, 99866, 112892, 119071, 120497, 134602, 199732, 238142, 240994, 269204, 476284, 481988, 649129, 874913, 1298258, 1547923, 1749826, 2596516, 3095846, 3499652, 6191692, 20122999, 40245998, 80491996]

約数ペア:

[(1, 80491996), (2, 40245998), (4, 20122999), (13, 6191692), (23, 3499652), (26, 3095846), (31, 2596516), (46, 1749826), (52, 1547923), (62, 1298258), (92, 874913), (124, 649129), (167, 481988), (169, 476284), (299, 269204), (334, 240994), (338, 238142), (403, 199732), (598, 134602), (668, 120497), (676, 119071), (713, 112892), (806, 99866), (1196, 67301), (1426, 56446), (1612, 49933), (2171, 37076), (2852, 28223), (3841, 20956), (3887, 20708), (4342, 18538), (5177, 15548), (5239, 15364), (7682, 10478), (7774, 10354), (8684, 9269)]