20717760

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3083}}^1$

素因数の和:3110

約数の個数: 112

約数和(自身を含む): 75200256

約数和(自身を除く): 54482496

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3083, 3360, 6166, 6720, 9249, 12332, 15415, 18498, 21581, 24664, 30830, 36996, 43162, 46245, 49328, 61660, 64743, 73992, 86324, 92490, 98656, 107905, 123320, 129486, 147984, 172648, 184980, 197312, 215810, 246640, 258972, 295968, 323715, 345296, 369960, 431620, 493280, 517944, 591936, 647430, 690592, 739920, 863240, 986560, 1035888, 1294860, 1381184, 1479840, 1726480, 2071776, 2589720, 2959680, 3452960, 4143552, 5179440, 6905920, 10358880, 20717760]

約数ペア:

[(1, 20717760), (2, 10358880), (3, 6905920), (4, 5179440), (5, 4143552), (6, 3452960), (7, 2959680), (8, 2589720), (10, 2071776), (12, 1726480), (14, 1479840), (15, 1381184), (16, 1294860), (20, 1035888), (21, 986560), (24, 863240), (28, 739920), (30, 690592), (32, 647430), (35, 591936), (40, 517944), (42, 493280), (48, 431620), (56, 369960), (60, 345296), (64, 323715), (70, 295968), (80, 258972), (84, 246640), (96, 215810), (105, 197312), (112, 184980), (120, 172648), (140, 147984), (160, 129486), (168, 123320), (192, 107905), (210, 98656), (224, 92490), (240, 86324), (280, 73992), (320, 64743), (336, 61660), (420, 49328), (448, 46245), (480, 43162), (560, 36996), (672, 30830), (840, 24664), (960, 21581), (1120, 18498), (1344, 15415), (1680, 12332), (2240, 9249), (3083, 6720), (3360, 6166)]