40720491

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 71907264

約数和(自身を除く): 31186773

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 193, 197, 357, 579, 591, 1071, 1351, 1379, 1737, 1773, 3281, 3349, 4053, 4137, 9843, 10047, 12159, 12411, 22967, 23443, 29529, 30141, 38021, 68901, 70329, 114063, 206703, 210987, 266147, 342189, 646357, 798441, 1939071, 2395323, 4524499, 5817213, 13573497, 40720491]

約数ペア:

[(1, 40720491), (3, 13573497), (7, 5817213), (9, 4524499), (17, 2395323), (21, 1939071), (51, 798441), (63, 646357), (119, 342189), (153, 266147), (193, 210987), (197, 206703), (357, 114063), (579, 70329), (591, 68901), (1071, 38021), (1351, 30141), (1379, 29529), (1737, 23443), (1773, 22967), (3281, 12411), (3349, 12159), (4053, 10047), (4137, 9843)]