20764320

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:438

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 45279840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 181, 239, 240, 362, 478, 480, 543, 717, 724, 905, 956, 1086, 1195, 1434, 1448, 1810, 1912, 2172, 2390, 2715, 2868, 2896, 3585, 3620, 3824, 4344, 4780, 5430, 5736, 5792, 7170, 7240, 7648, 8688, 9560, 10860, 11472, 14340, 14480, 17376, 19120, 21720, 22944, 28680, 28960, 38240, 43259, 43440, 57360, 86518, 86880, 114720, 129777, 173036, 216295, 259554, 346072, 432590, 519108, 648885, 692144, 865180, 1038216, 1297770, 1384288, 1730360, 2076432, 2595540, 3460720, 4152864, 5191080, 6921440, 10382160, 20764320]

約数ペア:

[(1, 20764320), (2, 10382160), (3, 6921440), (4, 5191080), (5, 4152864), (6, 3460720), (8, 2595540), (10, 2076432), (12, 1730360), (15, 1384288), (16, 1297770), (20, 1038216), (24, 865180), (30, 692144), (32, 648885), (40, 519108), (48, 432590), (60, 346072), (80, 259554), (96, 216295), (120, 173036), (160, 129777), (181, 114720), (239, 86880), (240, 86518), (362, 57360), (478, 43440), (480, 43259), (543, 38240), (717, 28960), (724, 28680), (905, 22944), (956, 21720), (1086, 19120), (1195, 17376), (1434, 14480), (1448, 14340), (1810, 11472), (1912, 10860), (2172, 9560), (2390, 8688), (2715, 7648), (2868, 7240), (2896, 7170), (3585, 5792), (3620, 5736), (3824, 5430), (4344, 4780)]