1627780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 4366656

約数和(自身を除く): 2738876

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 151, 154, 196, 220, 245, 302, 308, 385, 490, 539, 604, 755, 770, 980, 1057, 1078, 1510, 1540, 1661, 2114, 2156, 2695, 3020, 3322, 4228, 5285, 5390, 6644, 7399, 8305, 10570, 10780, 11627, 14798, 16610, 21140, 23254, 29596, 33220, 36995, 46508, 58135, 73990, 81389, 116270, 147980, 162778, 232540, 325556, 406945, 813890, 1627780]

約数ペア:

[(1, 1627780), (2, 813890), (4, 406945), (5, 325556), (7, 232540), (10, 162778), (11, 147980), (14, 116270), (20, 81389), (22, 73990), (28, 58135), (35, 46508), (44, 36995), (49, 33220), (55, 29596), (70, 23254), (77, 21140), (98, 16610), (110, 14798), (140, 11627), (151, 10780), (154, 10570), (196, 8305), (220, 7399), (245, 6644), (302, 5390), (308, 5285), (385, 4228), (490, 3322), (539, 3020), (604, 2695), (755, 2156), (770, 2114), (980, 1661), (1057, 1540), (1078, 1510)]