81488925

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1669}}^1$

素因数の和:1723

約数の個数: 72

約数和(自身を含む): 172290560

約数和(自身を除く): 90801635

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 63, 75, 93, 105, 155, 175, 217, 225, 279, 315, 465, 525, 651, 775, 1085, 1395, 1575, 1669, 1953, 2325, 3255, 5007, 5425, 6975, 8345, 9765, 11683, 15021, 16275, 25035, 35049, 41725, 48825, 51739, 58415, 75105, 105147, 125175, 155217, 175245, 258695, 292075, 362173, 375525, 465651, 525735, 776085, 876225, 1086519, 1293475, 1810865, 2328255, 2628675, 3259557, 3880425, 5432595, 9054325, 11641275, 16297785, 27162975, 81488925]

約数ペア:

[(1, 81488925), (3, 27162975), (5, 16297785), (7, 11641275), (9, 9054325), (15, 5432595), (21, 3880425), (25, 3259557), (31, 2628675), (35, 2328255), (45, 1810865), (63, 1293475), (75, 1086519), (93, 876225), (105, 776085), (155, 525735), (175, 465651), (217, 375525), (225, 362173), (279, 292075), (315, 258695), (465, 175245), (525, 155217), (651, 125175), (775, 105147), (1085, 75105), (1395, 58415), (1575, 51739), (1669, 48825), (1953, 41725), (2325, 35049), (3255, 25035), (5007, 16275), (5425, 15021), (6975, 11683), (8345, 9765)]