80979920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3527}}^1$

素因数の和:3588

約数の個数: 80

約数和(自身を含む): 220485888

約数和(自身を除く): 139505968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1435, 1640, 2296, 2870, 3280, 3527, 4592, 5740, 7054, 11480, 14108, 17635, 22960, 24689, 28216, 35270, 49378, 56432, 70540, 98756, 123445, 141080, 144607, 197512, 246890, 282160, 289214, 395024, 493780, 578428, 723035, 987560, 1012249, 1156856, 1446070, 1975120, 2024498, 2313712, 2892140, 4048996, 5061245, 5784280, 8097992, 10122490, 11568560, 16195984, 20244980, 40489960, 80979920]

約数ペア:

[(1, 80979920), (2, 40489960), (4, 20244980), (5, 16195984), (7, 11568560), (8, 10122490), (10, 8097992), (14, 5784280), (16, 5061245), (20, 4048996), (28, 2892140), (35, 2313712), (40, 2024498), (41, 1975120), (56, 1446070), (70, 1156856), (80, 1012249), (82, 987560), (112, 723035), (140, 578428), (164, 493780), (205, 395024), (280, 289214), (287, 282160), (328, 246890), (410, 197512), (560, 144607), (574, 141080), (656, 123445), (820, 98756), (1148, 70540), (1435, 56432), (1640, 49378), (2296, 35270), (2870, 28216), (3280, 24689), (3527, 22960), (4592, 17635), (5740, 14108), (7054, 11480)]