20493960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2549}}^1$

素因数の和:2630

約数の個数: 64

約数和(自身を含む): 62424000

約数和(自身を除く): 41930040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 67, 120, 134, 201, 268, 335, 402, 536, 670, 804, 1005, 1340, 1608, 2010, 2549, 2680, 4020, 5098, 7647, 8040, 10196, 12745, 15294, 20392, 25490, 30588, 38235, 50980, 61176, 76470, 101960, 152940, 170783, 305880, 341566, 512349, 683132, 853915, 1024698, 1366264, 1707830, 2049396, 2561745, 3415660, 4098792, 5123490, 6831320, 10246980, 20493960]

約数ペア:

[(1, 20493960), (2, 10246980), (3, 6831320), (4, 5123490), (5, 4098792), (6, 3415660), (8, 2561745), (10, 2049396), (12, 1707830), (15, 1366264), (20, 1024698), (24, 853915), (30, 683132), (40, 512349), (60, 341566), (67, 305880), (120, 170783), (134, 152940), (201, 101960), (268, 76470), (335, 61176), (402, 50980), (536, 38235), (670, 30588), (804, 25490), (1005, 20392), (1340, 15294), (1608, 12745), (2010, 10196), (2549, 8040), (2680, 7647), (4020, 5098)]