19833680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 48746880

約数和(自身を除く): 28913200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 83, 103, 116, 145, 166, 206, 232, 290, 332, 412, 415, 464, 515, 580, 664, 824, 830, 1030, 1160, 1328, 1648, 1660, 2060, 2320, 2407, 2987, 3320, 4120, 4814, 5974, 6640, 8240, 8549, 9628, 11948, 12035, 14935, 17098, 19256, 23896, 24070, 29870, 34196, 38512, 42745, 47792, 48140, 59740, 68392, 85490, 96280, 119480, 136784, 170980, 192560, 238960, 247921, 341960, 495842, 683920, 991684, 1239605, 1983368, 2479210, 3966736, 4958420, 9916840, 19833680]

約数ペア:

[(1, 19833680), (2, 9916840), (4, 4958420), (5, 3966736), (8, 2479210), (10, 1983368), (16, 1239605), (20, 991684), (29, 683920), (40, 495842), (58, 341960), (80, 247921), (83, 238960), (103, 192560), (116, 170980), (145, 136784), (166, 119480), (206, 96280), (232, 85490), (290, 68392), (332, 59740), (412, 48140), (415, 47792), (464, 42745), (515, 38512), (580, 34196), (664, 29870), (824, 24070), (830, 23896), (1030, 19256), (1160, 17098), (1328, 14935), (1648, 12035), (1660, 11948), (2060, 9628), (2320, 8549), (2407, 8240), (2987, 6640), (3320, 5974), (4120, 4814)]