19607840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 56105784

約数和(自身を除く): 36497944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 49, 56, 61, 70, 80, 82, 98, 112, 122, 140, 160, 164, 196, 205, 224, 244, 245, 280, 287, 305, 328, 392, 410, 427, 488, 490, 560, 574, 610, 656, 784, 820, 854, 976, 980, 1120, 1148, 1220, 1312, 1435, 1568, 1640, 1708, 1952, 1960, 2009, 2135, 2296, 2440, 2501, 2870, 2989, 3280, 3416, 3920, 4018, 4270, 4592, 4880, 5002, 5740, 5978, 6560, 6832, 7840, 8036, 8540, 9184, 9760, 10004, 10045, 11480, 11956, 12505, 13664, 14945, 16072, 17080, 17507, 20008, 20090, 22960, 23912, 25010, 29890, 32144, 34160, 35014, 40016, 40180, 45920, 47824, 50020, 59780, 64288, 68320, 70028, 80032, 80360, 87535, 95648, 100040, 119560, 122549, 140056, 160720, 175070, 200080, 239120, 245098, 280112, 321440, 350140, 400160, 478240, 490196, 560224, 612745, 700280, 980392, 1225490, 1400560, 1960784, 2450980, 2801120, 3921568, 4901960, 9803920, 19607840]

約数ペア:

[(1, 19607840), (2, 9803920), (4, 4901960), (5, 3921568), (7, 2801120), (8, 2450980), (10, 1960784), (14, 1400560), (16, 1225490), (20, 980392), (28, 700280), (32, 612745), (35, 560224), (40, 490196), (41, 478240), (49, 400160), (56, 350140), (61, 321440), (70, 280112), (80, 245098), (82, 239120), (98, 200080), (112, 175070), (122, 160720), (140, 140056), (160, 122549), (164, 119560), (196, 100040), (205, 95648), (224, 87535), (244, 80360), (245, 80032), (280, 70028), (287, 68320), (305, 64288), (328, 59780), (392, 50020), (410, 47824), (427, 45920), (488, 40180), (490, 40016), (560, 35014), (574, 34160), (610, 32144), (656, 29890), (784, 25010), (820, 23912), (854, 22960), (976, 20090), (980, 20008), (1120, 17507), (1148, 17080), (1220, 16072), (1312, 14945), (1435, 13664), (1568, 12505), (1640, 11956), (1708, 11480), (1952, 10045), (1960, 10004), (2009, 9760), (2135, 9184), (2296, 8540), (2440, 8036), (2501, 7840), (2870, 6832), (2989, 6560), (3280, 5978), (3416, 5740), (3920, 5002), (4018, 4880), (4270, 4592)]