31810485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 62705664

約数和(自身を除く): 30895179

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 71, 85, 105, 119, 213, 251, 255, 355, 357, 497, 595, 753, 1065, 1207, 1255, 1491, 1757, 1785, 2485, 3621, 3765, 4267, 5271, 6035, 7455, 8449, 8785, 12801, 17821, 18105, 21335, 25347, 26355, 29869, 42245, 53463, 64005, 89105, 89607, 124747, 126735, 149345, 267315, 302957, 374241, 448035, 623735, 908871, 1514785, 1871205, 2120699, 4544355, 6362097, 10603495, 31810485]

約数ペア:

[(1, 31810485), (3, 10603495), (5, 6362097), (7, 4544355), (15, 2120699), (17, 1871205), (21, 1514785), (35, 908871), (51, 623735), (71, 448035), (85, 374241), (105, 302957), (119, 267315), (213, 149345), (251, 126735), (255, 124747), (355, 89607), (357, 89105), (497, 64005), (595, 53463), (753, 42245), (1065, 29869), (1207, 26355), (1255, 25347), (1491, 21335), (1757, 18105), (1785, 17821), (2485, 12801), (3621, 8785), (3765, 8449), (4267, 7455), (5271, 6035)]