138629320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3881}}^1$

素因数の和:3958

約数の個数: 64

約数和(自身を含む): 335404800

約数和(自身を除く): 196775480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 893, 940, 1786, 1880, 3572, 3881, 4465, 7144, 7762, 8930, 15524, 17860, 19405, 31048, 35720, 38810, 73739, 77620, 147478, 155240, 182407, 294956, 364814, 368695, 589912, 729628, 737390, 912035, 1459256, 1474780, 1824070, 2949560, 3465733, 3648140, 6931466, 7296280, 13862932, 17328665, 27725864, 34657330, 69314660, 138629320]

約数ペア:

[(1, 138629320), (2, 69314660), (4, 34657330), (5, 27725864), (8, 17328665), (10, 13862932), (19, 7296280), (20, 6931466), (38, 3648140), (40, 3465733), (47, 2949560), (76, 1824070), (94, 1474780), (95, 1459256), (152, 912035), (188, 737390), (190, 729628), (235, 589912), (376, 368695), (380, 364814), (470, 294956), (760, 182407), (893, 155240), (940, 147478), (1786, 77620), (1880, 73739), (3572, 38810), (3881, 35720), (4465, 31048), (7144, 19405), (7762, 17860), (8930, 15524)]