20173665520

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1\times {\mathrm{4523}}^1$

素因数の和:5102

約数の個数: 80

約数和(自身を含む): 47391252480

約数和(自身を除く): 27217586960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 439, 508, 635, 878, 1016, 1270, 1756, 2032, 2195, 2540, 3512, 4390, 4523, 5080, 7024, 8780, 9046, 10160, 17560, 18092, 22615, 35120, 36184, 45230, 55753, 72368, 90460, 111506, 180920, 223012, 278765, 361840, 446024, 557530, 574421, 892048, 1115060, 1148842, 1985597, 2230120, 2297684, 2872105, 3971194, 4460240, 4595368, 5744210, 7942388, 9190736, 9927985, 11488420, 15884776, 19855970, 22976840, 31769552, 39711940, 45953680, 79423880, 158847760, 252170819, 504341638, 1008683276, 1260854095, 2017366552, 2521708190, 4034733104, 5043416380, 10086832760, 20173665520]

約数ペア:

[(1, 20173665520), (2, 10086832760), (4, 5043416380), (5, 4034733104), (8, 2521708190), (10, 2017366552), (16, 1260854095), (20, 1008683276), (40, 504341638), (80, 252170819), (127, 158847760), (254, 79423880), (439, 45953680), (508, 39711940), (635, 31769552), (878, 22976840), (1016, 19855970), (1270, 15884776), (1756, 11488420), (2032, 9927985), (2195, 9190736), (2540, 7942388), (3512, 5744210), (4390, 4595368), (4523, 4460240), (5080, 3971194), (7024, 2872105), (8780, 2297684), (9046, 2230120), (10160, 1985597), (17560, 1148842), (18092, 1115060), (22615, 892048), (35120, 574421), (36184, 557530), (45230, 446024), (55753, 361840), (72368, 278765), (90460, 223012), (111506, 180920)]