81707258

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 134400000

約数和(自身を除く): 52692742

約数列:

[1, 2, 19, 31, 38, 62, 139, 278, 499, 589, 998, 1178, 2641, 4309, 5282, 8618, 9481, 15469, 18962, 30938, 69361, 81871, 138722, 163742, 293911, 587822, 1317859, 2150191, 2635718, 4300382, 40853629, 81707258]

約数ペア:

[(1, 81707258), (2, 40853629), (19, 4300382), (31, 2635718), (38, 2150191), (62, 1317859), (139, 587822), (278, 293911), (499, 163742), (589, 138722), (998, 81871), (1178, 69361), (2641, 30938), (4309, 18962), (5282, 15469), (8618, 9481)]