81065460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193013}}^1$

素因数の和:193032

約数の個数: 48

約数和(自身を含む): 259410816

約数和(自身を除く): 178345356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 193013, 386026, 579039, 772052, 965065, 1158078, 1351091, 1930130, 2316156, 2702182, 2895195, 3860260, 4053273, 5404364, 5790390, 6755455, 8106546, 11580780, 13510910, 16213092, 20266365, 27021820, 40532730, 81065460]

約数ペア:

[(1, 81065460), (2, 40532730), (3, 27021820), (4, 20266365), (5, 16213092), (6, 13510910), (7, 11580780), (10, 8106546), (12, 6755455), (14, 5790390), (15, 5404364), (20, 4053273), (21, 3860260), (28, 2895195), (30, 2702182), (35, 2316156), (42, 1930130), (60, 1351091), (70, 1158078), (84, 965065), (105, 772052), (140, 579039), (210, 386026), (420, 193013)]