72980290

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 134025840

約数和(自身を除く): 61045550

約数列:

[1, 2, 5, 10, 73, 146, 257, 365, 389, 514, 730, 778, 1285, 1945, 2570, 3890, 18761, 28397, 37522, 56794, 93805, 99973, 141985, 187610, 199946, 283970, 499865, 999730, 7298029, 14596058, 36490145, 72980290]

約数ペア:

[(1, 72980290), (2, 36490145), (5, 14596058), (10, 7298029), (73, 999730), (146, 499865), (257, 283970), (365, 199946), (389, 187610), (514, 141985), (730, 99973), (778, 93805), (1285, 56794), (1945, 37522), (2570, 28397), (3890, 18761)]