978102848125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{18719}}^1$

素因数の和:18920

約数の個数: 80

約数和(自身を含む): 1350917568000

約数和(自身を除く): 372814719875

約数列:

[1, 5, 13, 25, 59, 65, 109, 125, 295, 325, 545, 625, 767, 1417, 1475, 1625, 2725, 3835, 6431, 7085, 7375, 8125, 13625, 18719, 19175, 32155, 35425, 36875, 68125, 83603, 93595, 95875, 160775, 177125, 243347, 418015, 467975, 479375, 803875, 885625, 1104421, 1216735, 2040371, 2090075, 2339875, 4019375, 5522105, 6083675, 10201855, 10450375, 11699375, 14357473, 26524823, 27610525, 30418375, 51009275, 52251875, 71787365, 120381889, 132624115, 138052625, 152091875, 255046375, 358936825, 601909445, 663120575, 690263125, 1275231875, 1564964557, 1794684125, 3009547225, 3315602875, 7824822785, 8973420625, 15047736125, 16578014375, 39124113925, 75238680625, 195620569625, 978102848125]

約数ペア:

[(1, 978102848125), (5, 195620569625), (13, 75238680625), (25, 39124113925), (59, 16578014375), (65, 15047736125), (109, 8973420625), (125, 7824822785), (295, 3315602875), (325, 3009547225), (545, 1794684125), (625, 1564964557), (767, 1275231875), (1417, 690263125), (1475, 663120575), (1625, 601909445), (2725, 358936825), (3835, 255046375), (6431, 152091875), (7085, 138052625), (7375, 132624115), (8125, 120381889), (13625, 71787365), (18719, 52251875), (19175, 51009275), (32155, 30418375), (35425, 27610525), (36875, 26524823), (68125, 14357473), (83603, 11699375), (93595, 10450375), (95875, 10201855), (160775, 6083675), (177125, 5522105), (243347, 4019375), (418015, 2339875), (467975, 2090075), (479375, 2040371), (803875, 1216735), (885625, 1104421)]