19571840

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{577}}^1$

素因数の和:649

約数の個数: 64

約数和(自身を含む): 47754360

約数和(自身を除く): 28182520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 265, 320, 424, 530, 577, 640, 848, 1060, 1154, 1696, 2120, 2308, 2885, 3392, 4240, 4616, 5770, 6784, 8480, 9232, 11540, 16960, 18464, 23080, 30581, 33920, 36928, 46160, 61162, 73856, 92320, 122324, 152905, 184640, 244648, 305810, 369280, 489296, 611620, 978592, 1223240, 1957184, 2446480, 3914368, 4892960, 9785920, 19571840]

約数ペア:

[(1, 19571840), (2, 9785920), (4, 4892960), (5, 3914368), (8, 2446480), (10, 1957184), (16, 1223240), (20, 978592), (32, 611620), (40, 489296), (53, 369280), (64, 305810), (80, 244648), (106, 184640), (128, 152905), (160, 122324), (212, 92320), (265, 73856), (320, 61162), (424, 46160), (530, 36928), (577, 33920), (640, 30581), (848, 23080), (1060, 18464), (1154, 16960), (1696, 11540), (2120, 9232), (2308, 8480), (2885, 6784), (3392, 5770), (4240, 4616)]