79938520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 186883200

約数和(自身を除く): 106944680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 158, 164, 205, 316, 328, 395, 410, 617, 632, 790, 820, 1234, 1580, 1640, 2468, 3085, 3160, 3239, 4936, 6170, 6478, 12340, 12956, 16195, 24680, 25297, 25912, 32390, 48743, 50594, 64780, 97486, 101188, 126485, 129560, 194972, 202376, 243715, 252970, 389944, 487430, 505940, 974860, 1011880, 1949720, 1998463, 3996926, 7993852, 9992315, 15987704, 19984630, 39969260, 79938520]

約数ペア:

[(1, 79938520), (2, 39969260), (4, 19984630), (5, 15987704), (8, 9992315), (10, 7993852), (20, 3996926), (40, 1998463), (41, 1949720), (79, 1011880), (82, 974860), (158, 505940), (164, 487430), (205, 389944), (316, 252970), (328, 243715), (395, 202376), (410, 194972), (617, 129560), (632, 126485), (790, 101188), (820, 97486), (1234, 64780), (1580, 50594), (1640, 48743), (2468, 32390), (3085, 25912), (3160, 25297), (3239, 24680), (4936, 16195), (6170, 12956), (6478, 12340)]