20706848000

素因数分解:

$2^8\times 5^3\times {\mathrm{79}}^1\times {\mathrm{8191}}^1$

素因数の和:8301

約数の個数: 144

約数和(自身を含む): 52242677760

約数和(自身を除く): 31535829760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 125, 128, 158, 160, 200, 250, 256, 316, 320, 395, 400, 500, 632, 640, 790, 800, 1000, 1264, 1280, 1580, 1600, 1975, 2000, 2528, 3160, 3200, 3950, 4000, 5056, 6320, 6400, 7900, 8000, 8191, 9875, 10112, 12640, 15800, 16000, 16382, 19750, 20224, 25280, 31600, 32000, 32764, 39500, 40955, 50560, 63200, 65528, 79000, 81910, 101120, 126400, 131056, 158000, 163820, 204775, 252800, 262112, 316000, 327640, 409550, 505600, 524224, 632000, 647089, 655280, 819100, 1023875, 1048448, 1264000, 1294178, 1310560, 1638200, 2047750, 2096896, 2528000, 2588356, 2621120, 3235445, 3276400, 4095500, 5176712, 5242240, 6470890, 6552800, 8191000, 10353424, 10484480, 12941780, 13105600, 16177225, 16382000, 20706848, 25883560, 26211200, 32354450, 32764000, 41413696, 51767120, 52422400, 64708900, 65528000, 80886125, 82827392, 103534240, 129417800, 131056000, 161772250, 165654784, 207068480, 258835600, 262112000, 323544500, 414136960, 517671200, 647089000, 828273920, 1035342400, 1294178000, 2070684800, 2588356000, 4141369600, 5176712000, 10353424000, 20706848000]

約数ペア:

[(1, 20706848000), (2, 10353424000), (4, 5176712000), (5, 4141369600), (8, 2588356000), (10, 2070684800), (16, 1294178000), (20, 1035342400), (25, 828273920), (32, 647089000), (40, 517671200), (50, 414136960), (64, 323544500), (79, 262112000), (80, 258835600), (100, 207068480), (125, 165654784), (128, 161772250), (158, 131056000), (160, 129417800), (200, 103534240), (250, 82827392), (256, 80886125), (316, 65528000), (320, 64708900), (395, 52422400), (400, 51767120), (500, 41413696), (632, 32764000), (640, 32354450), (790, 26211200), (800, 25883560), (1000, 20706848), (1264, 16382000), (1280, 16177225), (1580, 13105600), (1600, 12941780), (1975, 10484480), (2000, 10353424), (2528, 8191000), (3160, 6552800), (3200, 6470890), (3950, 5242240), (4000, 5176712), (5056, 4095500), (6320, 3276400), (6400, 3235445), (7900, 2621120), (8000, 2588356), (8191, 2528000), (9875, 2096896), (10112, 2047750), (12640, 1638200), (15800, 1310560), (16000, 1294178), (16382, 1264000), (19750, 1048448), (20224, 1023875), (25280, 819100), (31600, 655280), (32000, 647089), (32764, 632000), (39500, 524224), (40955, 505600), (50560, 409550), (63200, 327640), (65528, 316000), (79000, 262112), (81910, 252800), (101120, 204775), (126400, 163820), (131056, 158000)]