259940480

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{17659}}^1$

素因数の和:17701

約数の個数: 64

約数和(自身を含む): 648475200

約数和(自身を除く): 388534720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2944, 3680, 7360, 14720, 17659, 35318, 70636, 88295, 141272, 176590, 282544, 353180, 406157, 565088, 706360, 812314, 1130176, 1412720, 1624628, 2030785, 2260352, 2825440, 3249256, 4061570, 5650880, 6498512, 8123140, 11301760, 12997024, 16246280, 25994048, 32492560, 51988096, 64985120, 129970240, 259940480]

約数ペア:

[(1, 259940480), (2, 129970240), (4, 64985120), (5, 51988096), (8, 32492560), (10, 25994048), (16, 16246280), (20, 12997024), (23, 11301760), (32, 8123140), (40, 6498512), (46, 5650880), (64, 4061570), (80, 3249256), (92, 2825440), (115, 2260352), (128, 2030785), (160, 1624628), (184, 1412720), (230, 1130176), (320, 812314), (368, 706360), (460, 565088), (640, 406157), (736, 353180), (920, 282544), (1472, 176590), (1840, 141272), (2944, 88295), (3680, 70636), (7360, 35318), (14720, 17659)]