388956974

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 724930560

約数和(自身を除く): 335973586

約数列:

[1, 2, 7, 14, 17, 34, 79, 119, 137, 151, 158, 238, 274, 302, 553, 959, 1057, 1106, 1343, 1918, 2114, 2329, 2567, 2686, 4658, 5134, 9401, 10823, 11929, 16303, 17969, 18802, 20687, 21646, 23858, 32606, 35938, 41374, 75761, 83503, 144809, 151522, 167006, 183991, 202793, 289618, 351679, 367982, 405586, 703358, 1287937, 1419551, 1634273, 2461753, 2575874, 2839102, 3268546, 4923506, 11439911, 22879822, 27782641, 55565282, 194478487, 388956974]

約数ペア:

[(1, 388956974), (2, 194478487), (7, 55565282), (14, 27782641), (17, 22879822), (34, 11439911), (79, 4923506), (119, 3268546), (137, 2839102), (151, 2575874), (158, 2461753), (238, 1634273), (274, 1419551), (302, 1287937), (553, 703358), (959, 405586), (1057, 367982), (1106, 351679), (1343, 289618), (1918, 202793), (2114, 183991), (2329, 167006), (2567, 151522), (2686, 144809), (4658, 83503), (5134, 75761), (9401, 41374), (10823, 35938), (11929, 32606), (16303, 23858), (17969, 21646), (18802, 20687)]