64861230100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{63113}}^1$

素因数の和:63409

約数の個数: 72

約数和(自身を含む): 144626993280

約数和(自身を除く): 79765763180

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 239, 430, 478, 860, 956, 1075, 1195, 2150, 2390, 4300, 4780, 5975, 10277, 11950, 20554, 23900, 41108, 51385, 63113, 102770, 126226, 205540, 252452, 256925, 315565, 513850, 631130, 1027700, 1262260, 1577825, 2713859, 3155650, 5427718, 6311300, 10855436, 13569295, 15084007, 27138590, 30168014, 54277180, 60336028, 67846475, 75420035, 135692950, 150840070, 271385900, 301680140, 377100175, 648612301, 754200350, 1297224602, 1508400700, 2594449204, 3243061505, 6486123010, 12972246020, 16215307525, 32430615050, 64861230100]

約数ペア:

[(1, 64861230100), (2, 32430615050), (4, 16215307525), (5, 12972246020), (10, 6486123010), (20, 3243061505), (25, 2594449204), (43, 1508400700), (50, 1297224602), (86, 754200350), (100, 648612301), (172, 377100175), (215, 301680140), (239, 271385900), (430, 150840070), (478, 135692950), (860, 75420035), (956, 67846475), (1075, 60336028), (1195, 54277180), (2150, 30168014), (2390, 27138590), (4300, 15084007), (4780, 13569295), (5975, 10855436), (10277, 6311300), (11950, 5427718), (20554, 3155650), (23900, 2713859), (41108, 1577825), (51385, 1262260), (63113, 1027700), (102770, 631130), (126226, 513850), (205540, 315565), (252452, 256925)]