20199290960

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{13259}}^1$

素因数の和:13548

約数の個数: 80

約数和(自身を含む): 47650075200

約数和(自身を除く): 27450784240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 139, 274, 278, 548, 556, 685, 695, 1096, 1112, 1370, 1390, 2192, 2224, 2740, 2780, 5480, 5560, 10960, 11120, 13259, 19043, 26518, 38086, 53036, 66295, 76172, 95215, 106072, 132590, 152344, 190430, 212144, 265180, 304688, 380860, 530360, 761720, 1060720, 1523440, 1816483, 1843001, 3632966, 3686002, 7265932, 7372004, 9082415, 9215005, 14531864, 14744008, 18164830, 18430010, 29063728, 29488016, 36329660, 36860020, 72659320, 73720040, 145318640, 147440080, 252491137, 504982274, 1009964548, 1262455685, 2019929096, 2524911370, 4039858192, 5049822740, 10099645480, 20199290960]

約数ペア:

[(1, 20199290960), (2, 10099645480), (4, 5049822740), (5, 4039858192), (8, 2524911370), (10, 2019929096), (16, 1262455685), (20, 1009964548), (40, 504982274), (80, 252491137), (137, 147440080), (139, 145318640), (274, 73720040), (278, 72659320), (548, 36860020), (556, 36329660), (685, 29488016), (695, 29063728), (1096, 18430010), (1112, 18164830), (1370, 14744008), (1390, 14531864), (2192, 9215005), (2224, 9082415), (2740, 7372004), (2780, 7265932), (5480, 3686002), (5560, 3632966), (10960, 1843001), (11120, 1816483), (13259, 1523440), (19043, 1060720), (26518, 761720), (38086, 530360), (53036, 380860), (66295, 304688), (76172, 265180), (95215, 212144), (106072, 190430), (132590, 152344)]