64065700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 145740672

約数和(自身を除く): 81674972

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 47, 50, 86, 94, 100, 172, 188, 215, 235, 317, 430, 470, 634, 860, 940, 1075, 1175, 1268, 1585, 2021, 2150, 2350, 3170, 4042, 4300, 4700, 6340, 7925, 8084, 10105, 13631, 14899, 15850, 20210, 27262, 29798, 31700, 40420, 50525, 54524, 59596, 68155, 74495, 101050, 136310, 148990, 202100, 272620, 297980, 340775, 372475, 640657, 681550, 744950, 1281314, 1363100, 1489900, 2562628, 3203285, 6406570, 12813140, 16016425, 32032850, 64065700]

約数ペア:

[(1, 64065700), (2, 32032850), (4, 16016425), (5, 12813140), (10, 6406570), (20, 3203285), (25, 2562628), (43, 1489900), (47, 1363100), (50, 1281314), (86, 744950), (94, 681550), (100, 640657), (172, 372475), (188, 340775), (215, 297980), (235, 272620), (317, 202100), (430, 148990), (470, 136310), (634, 101050), (860, 74495), (940, 68155), (1075, 59596), (1175, 54524), (1268, 50525), (1585, 40420), (2021, 31700), (2150, 29798), (2350, 27262), (3170, 20210), (4042, 15850), (4300, 14899), (4700, 13631), (6340, 10105), (7925, 8084)]