2028815425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 3138757440

約数和(自身を除く): 1109942015

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 169, 175, 181, 325, 379, 455, 845, 905, 1183, 1267, 1895, 2275, 2353, 2653, 4225, 4525, 4927, 5915, 6335, 9475, 11765, 13265, 16471, 24635, 29575, 30589, 31675, 34489, 58825, 64051, 66325, 68599, 82355, 123175, 152945, 172445, 214123, 320255, 342995, 411775, 448357, 480193, 764725, 862225, 891787, 1070615, 1601275, 1714975, 2241785, 2400965, 4458935, 5353075, 6242509, 11208925, 11593231, 12004825, 22294675, 31212545, 57966155, 81152617, 156062725, 289830775, 405763085, 2028815425]

約数ペア:

[(1, 2028815425), (5, 405763085), (7, 289830775), (13, 156062725), (25, 81152617), (35, 57966155), (65, 31212545), (91, 22294675), (169, 12004825), (175, 11593231), (181, 11208925), (325, 6242509), (379, 5353075), (455, 4458935), (845, 2400965), (905, 2241785), (1183, 1714975), (1267, 1601275), (1895, 1070615), (2275, 891787), (2353, 862225), (2653, 764725), (4225, 480193), (4525, 448357), (4927, 411775), (5915, 342995), (6335, 320255), (9475, 214123), (11765, 172445), (13265, 152945), (16471, 123175), (24635, 82355), (29575, 68599), (30589, 66325), (31675, 64051), (34489, 58825)]