20853824920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1\times {\mathrm{607}}^1$

素因数の和:1097

約数の個数: 128

約数和(自身を含む): 49641984000

約数和(自身を除く): 28788159080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 107, 115, 184, 214, 230, 349, 428, 460, 535, 607, 698, 856, 920, 1070, 1214, 1396, 1745, 2140, 2428, 2461, 2792, 3035, 3490, 4280, 4856, 4922, 6070, 6980, 8027, 9844, 12140, 12305, 13960, 13961, 16054, 19688, 24280, 24610, 27922, 32108, 37343, 40135, 49220, 55844, 64216, 64949, 69805, 74686, 80270, 98440, 111688, 129898, 139610, 149372, 160540, 186715, 211843, 259796, 279220, 298744, 321080, 324745, 373430, 423686, 519592, 558440, 649490, 746860, 847372, 858889, 1059215, 1298980, 1493720, 1493827, 1694744, 1717778, 2118430, 2597960, 2987654, 3435556, 4236860, 4294445, 4872389, 5975308, 6871112, 7469135, 8473720, 8588890, 9744778, 11950616, 14938270, 17177780, 19489556, 22667201, 24361945, 29876540, 34355560, 38979112, 45334402, 48723890, 59753080, 90668804, 97447780, 113336005, 181337608, 194895560, 226672010, 453344020, 521345623, 906688040, 1042691246, 2085382492, 2606728115, 4170764984, 5213456230, 10426912460, 20853824920]

約数ペア:

[(1, 20853824920), (2, 10426912460), (4, 5213456230), (5, 4170764984), (8, 2606728115), (10, 2085382492), (20, 1042691246), (23, 906688040), (40, 521345623), (46, 453344020), (92, 226672010), (107, 194895560), (115, 181337608), (184, 113336005), (214, 97447780), (230, 90668804), (349, 59753080), (428, 48723890), (460, 45334402), (535, 38979112), (607, 34355560), (698, 29876540), (856, 24361945), (920, 22667201), (1070, 19489556), (1214, 17177780), (1396, 14938270), (1745, 11950616), (2140, 9744778), (2428, 8588890), (2461, 8473720), (2792, 7469135), (3035, 6871112), (3490, 5975308), (4280, 4872389), (4856, 4294445), (4922, 4236860), (6070, 3435556), (6980, 2987654), (8027, 2597960), (9844, 2118430), (12140, 1717778), (12305, 1694744), (13960, 1493827), (13961, 1493720), (16054, 1298980), (19688, 1059215), (24280, 858889), (24610, 847372), (27922, 746860), (32108, 649490), (37343, 558440), (40135, 519592), (49220, 423686), (55844, 373430), (64216, 324745), (64949, 321080), (69805, 298744), (74686, 279220), (80270, 259796), (98440, 211843), (111688, 186715), (129898, 160540), (139610, 149372)]