172636520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19889}}^1$

素因数の和:19938

約数の個数: 64

約数和(自身を含む): 458265600

約数和(自身を除く): 285629080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 19889, 39778, 79556, 99445, 139223, 159112, 198890, 278446, 397780, 556892, 616559, 696115, 795560, 1113784, 1233118, 1392230, 2466236, 2784460, 3082795, 4315913, 4932472, 5568920, 6165590, 8631826, 12331180, 17263652, 21579565, 24662360, 34527304, 43159130, 86318260, 172636520]

約数ペア:

[(1, 172636520), (2, 86318260), (4, 43159130), (5, 34527304), (7, 24662360), (8, 21579565), (10, 17263652), (14, 12331180), (20, 8631826), (28, 6165590), (31, 5568920), (35, 4932472), (40, 4315913), (56, 3082795), (62, 2784460), (70, 2466236), (124, 1392230), (140, 1233118), (155, 1113784), (217, 795560), (248, 696115), (280, 616559), (310, 556892), (434, 397780), (620, 278446), (868, 198890), (1085, 159112), (1240, 139223), (1736, 99445), (2170, 79556), (4340, 39778), (8680, 19889)]