388390072

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^2\times {\mathrm{1031}}^1$

素因数の和:1113

約数の個数: 72

約数和(自身を含む): 876183480

約数和(自身を除く): 487793408

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 196, 217, 248, 392, 434, 868, 961, 1031, 1519, 1736, 1922, 2062, 3038, 3844, 4124, 6076, 6727, 7217, 7688, 8248, 12152, 13454, 14434, 26908, 28868, 31961, 47089, 50519, 53816, 57736, 63922, 94178, 101038, 127844, 188356, 202076, 223727, 255688, 376712, 404152, 447454, 894908, 990791, 1566089, 1789816, 1981582, 3132178, 3963164, 6264356, 6935537, 7926328, 12528712, 13871074, 27742148, 48548759, 55484296, 97097518, 194195036, 388390072]

約数ペア:

[(1, 388390072), (2, 194195036), (4, 97097518), (7, 55484296), (8, 48548759), (14, 27742148), (28, 13871074), (31, 12528712), (49, 7926328), (56, 6935537), (62, 6264356), (98, 3963164), (124, 3132178), (196, 1981582), (217, 1789816), (248, 1566089), (392, 990791), (434, 894908), (868, 447454), (961, 404152), (1031, 376712), (1519, 255688), (1736, 223727), (1922, 202076), (2062, 188356), (3038, 127844), (3844, 101038), (4124, 94178), (6076, 63922), (6727, 57736), (7217, 53816), (7688, 50519), (8248, 47089), (12152, 31961), (13454, 28868), (14434, 26908)]