40698880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{7949}}^1$

素因数の和:7974

約数の個数: 44

約数和(自身を含む): 97641900

約数和(自身を除く): 56943020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 7949, 15898, 31796, 39745, 63592, 79490, 127184, 158980, 254368, 317960, 508736, 635920, 1017472, 1271840, 2034944, 2543680, 4069888, 5087360, 8139776, 10174720, 20349440, 40698880]

約数ペア:

[(1, 40698880), (2, 20349440), (4, 10174720), (5, 8139776), (8, 5087360), (10, 4069888), (16, 2543680), (20, 2034944), (32, 1271840), (40, 1017472), (64, 635920), (80, 508736), (128, 317960), (160, 254368), (256, 158980), (320, 127184), (512, 79490), (640, 63592), (1024, 39745), (1280, 31796), (2560, 15898), (5120, 7949)]