20456397310

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{15361}}^1$

素因数の和:15593

約数の個数: 64

約数和(自身を含む): 39906789120

約数和(自身を除く): 19450391810

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 163, 190, 215, 326, 430, 815, 817, 1630, 1634, 3097, 4085, 6194, 7009, 8170, 14018, 15361, 15485, 30722, 30970, 35045, 70090, 76805, 133171, 153610, 266342, 291859, 583718, 660523, 665855, 1321046, 1331710, 1459295, 2503843, 2918590, 3302615, 5007686, 6605230, 12519215, 12549937, 25038430, 25099874, 47573017, 62749685, 95146034, 107665249, 125499370, 215330498, 237865085, 475730170, 538326245, 1076652490, 2045639731, 4091279462, 10228198655, 20456397310]

約数ペア:

[(1, 20456397310), (2, 10228198655), (5, 4091279462), (10, 2045639731), (19, 1076652490), (38, 538326245), (43, 475730170), (86, 237865085), (95, 215330498), (163, 125499370), (190, 107665249), (215, 95146034), (326, 62749685), (430, 47573017), (815, 25099874), (817, 25038430), (1630, 12549937), (1634, 12519215), (3097, 6605230), (4085, 5007686), (6194, 3302615), (7009, 2918590), (8170, 2503843), (14018, 1459295), (15361, 1331710), (15485, 1321046), (30722, 665855), (30970, 660523), (35045, 583718), (70090, 291859), (76805, 266342), (133171, 153610)]