20120715

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 37234080

約数和(自身を除く): 17113365

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 101, 171, 233, 285, 303, 505, 699, 855, 909, 1165, 1515, 1919, 2097, 3495, 4427, 4545, 5757, 9595, 10485, 13281, 17271, 22135, 23533, 28785, 39843, 66405, 70599, 86355, 117665, 199215, 211797, 352995, 447127, 1058985, 1341381, 2235635, 4024143, 6706905, 20120715]

約数ペア:

[(1, 20120715), (3, 6706905), (5, 4024143), (9, 2235635), (15, 1341381), (19, 1058985), (45, 447127), (57, 352995), (95, 211797), (101, 199215), (171, 117665), (233, 86355), (285, 70599), (303, 66405), (505, 39843), (699, 28785), (855, 23533), (909, 22135), (1165, 17271), (1515, 13281), (1919, 10485), (2097, 9595), (3495, 5757), (4427, 4545)]