1978851880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{16529}}^1$

素因数の和:16654

約数の個数: 64

約数和(自身を含む): 4623771600

約数和(自身を除く): 2644919720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 73, 82, 146, 164, 205, 292, 328, 365, 410, 584, 730, 820, 1460, 1640, 2920, 2993, 5986, 11972, 14965, 16529, 23944, 29930, 33058, 59860, 66116, 82645, 119720, 132232, 165290, 330580, 661160, 677689, 1206617, 1355378, 2413234, 2710756, 3388445, 4826468, 5421512, 6033085, 6776890, 9652936, 12066170, 13553780, 24132340, 27107560, 48264680, 49471297, 98942594, 197885188, 247356485, 395770376, 494712970, 989425940, 1978851880]

約数ペア:

[(1, 1978851880), (2, 989425940), (4, 494712970), (5, 395770376), (8, 247356485), (10, 197885188), (20, 98942594), (40, 49471297), (41, 48264680), (73, 27107560), (82, 24132340), (146, 13553780), (164, 12066170), (205, 9652936), (292, 6776890), (328, 6033085), (365, 5421512), (410, 4826468), (584, 3388445), (730, 2710756), (820, 2413234), (1460, 1355378), (1640, 1206617), (2920, 677689), (2993, 661160), (5986, 330580), (11972, 165290), (14965, 132232), (16529, 119720), (23944, 82645), (29930, 66116), (33058, 59860)]