254366980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{18731}}^1$

素因数の和:18844

約数の個数: 48

約数和(自身を含む): 616807296

約数和(自身を除く): 362440316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2716, 3395, 6790, 13580, 18731, 37462, 74924, 93655, 131117, 187310, 262234, 374620, 524468, 655585, 1311170, 1816907, 2622340, 3633814, 7267628, 9084535, 12718349, 18169070, 25436698, 36338140, 50873396, 63591745, 127183490, 254366980]

約数ペア:

[(1, 254366980), (2, 127183490), (4, 63591745), (5, 50873396), (7, 36338140), (10, 25436698), (14, 18169070), (20, 12718349), (28, 9084535), (35, 7267628), (70, 3633814), (97, 2622340), (140, 1816907), (194, 1311170), (388, 655585), (485, 524468), (679, 374620), (970, 262234), (1358, 187310), (1940, 131117), (2716, 93655), (3395, 74924), (6790, 37462), (13580, 18731)]