129978880

素因数分解:

$2^9\times 5^1\times {\mathrm{50773}}^1$

素因数の和:50796

約数の個数: 40

約数和(自身を含む): 311650812

約数和(自身を除く): 181671932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 50773, 101546, 203092, 253865, 406184, 507730, 812368, 1015460, 1624736, 2030920, 3249472, 4061840, 6498944, 8123680, 12997888, 16247360, 25995776, 32494720, 64989440, 129978880]

約数ペア:

[(1, 129978880), (2, 64989440), (4, 32494720), (5, 25995776), (8, 16247360), (10, 12997888), (16, 8123680), (20, 6498944), (32, 4061840), (40, 3249472), (64, 2030920), (80, 1624736), (128, 1015460), (160, 812368), (256, 507730), (320, 406184), (512, 253865), (640, 203092), (1280, 101546), (2560, 50773)]