78778880

素因数分解:

$2^9\times 5^1\times {\mathrm{30773}}^1$

素因数の和:30796

約数の個数: 40

約数和(自身を含む): 188890812

約数和(自身を除く): 110111932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 30773, 61546, 123092, 153865, 246184, 307730, 492368, 615460, 984736, 1230920, 1969472, 2461840, 3938944, 4923680, 7877888, 9847360, 15755776, 19694720, 39389440, 78778880]

約数ペア:

[(1, 78778880), (2, 39389440), (4, 19694720), (5, 15755776), (8, 9847360), (10, 7877888), (16, 4923680), (20, 3938944), (32, 2461840), (40, 1969472), (64, 1230920), (80, 984736), (128, 615460), (160, 492368), (256, 307730), (320, 246184), (512, 153865), (640, 123092), (1280, 61546), (2560, 30773)]