208065820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 476517888

約数和(自身を除く): 268452068

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 67, 86, 92, 115, 134, 157, 172, 215, 230, 268, 314, 335, 430, 460, 628, 670, 785, 860, 989, 1340, 1541, 1570, 1978, 2881, 3082, 3140, 3611, 3956, 4945, 5762, 6164, 6751, 7222, 7705, 9890, 10519, 11524, 13502, 14405, 14444, 15410, 18055, 19780, 21038, 27004, 28810, 30820, 33755, 36110, 42076, 52595, 57620, 66263, 67510, 72220, 105190, 132526, 135020, 155273, 210380, 241937, 265052, 310546, 331315, 452317, 483874, 621092, 662630, 776365, 904634, 967748, 1209685, 1325260, 1552730, 1809268, 2261585, 2419370, 3105460, 4523170, 4838740, 9046340, 10403291, 20806582, 41613164, 52016455, 104032910, 208065820]

約数ペア:

[(1, 208065820), (2, 104032910), (4, 52016455), (5, 41613164), (10, 20806582), (20, 10403291), (23, 9046340), (43, 4838740), (46, 4523170), (67, 3105460), (86, 2419370), (92, 2261585), (115, 1809268), (134, 1552730), (157, 1325260), (172, 1209685), (215, 967748), (230, 904634), (268, 776365), (314, 662630), (335, 621092), (430, 483874), (460, 452317), (628, 331315), (670, 310546), (785, 265052), (860, 241937), (989, 210380), (1340, 155273), (1541, 135020), (1570, 132526), (1978, 105190), (2881, 72220), (3082, 67510), (3140, 66263), (3611, 57620), (3956, 52595), (4945, 42076), (5762, 36110), (6164, 33755), (6751, 30820), (7222, 28810), (7705, 27004), (9890, 21038), (10519, 19780), (11524, 18055), (13502, 15410), (14405, 14444)]