78921905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 105092640

約数和(自身を除く): 26170735

約数列:

[1, 5, 17, 29, 85, 101, 145, 317, 493, 505, 1585, 1717, 2465, 2929, 5389, 8585, 9193, 14645, 26945, 32017, 45965, 49793, 156281, 160085, 248965, 544289, 781405, 928493, 2721445, 4642465, 15784381, 78921905]

約数ペア:

[(1, 78921905), (5, 15784381), (17, 4642465), (29, 2721445), (85, 928493), (101, 781405), (145, 544289), (317, 248965), (493, 160085), (505, 156281), (1585, 49793), (1717, 45965), (2465, 32017), (2929, 26945), (5389, 14645), (8585, 9193)]