20655442480

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1867}}^1\times {\mathrm{3373}}^1$

素因数の和:5294

約数の個数: 80

約数和(自身を含む): 49236161184

約数和(自身を除く): 28580718704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 1867, 3280, 3373, 3734, 6746, 7468, 9335, 13492, 14936, 16865, 18670, 26984, 29872, 33730, 37340, 53968, 67460, 74680, 76547, 134920, 138293, 149360, 153094, 269840, 276586, 306188, 382735, 553172, 612376, 691465, 765470, 1106344, 1224752, 1382930, 1530940, 2212688, 2765860, 3061880, 5531720, 6123760, 6297391, 11063440, 12594782, 25189564, 31486955, 50379128, 62973910, 100758256, 125947820, 251895640, 258193031, 503791280, 516386062, 1032772124, 1290965155, 2065544248, 2581930310, 4131088496, 5163860620, 10327721240, 20655442480]

約数ペア:

[(1, 20655442480), (2, 10327721240), (4, 5163860620), (5, 4131088496), (8, 2581930310), (10, 2065544248), (16, 1290965155), (20, 1032772124), (40, 516386062), (41, 503791280), (80, 258193031), (82, 251895640), (164, 125947820), (205, 100758256), (328, 62973910), (410, 50379128), (656, 31486955), (820, 25189564), (1640, 12594782), (1867, 11063440), (3280, 6297391), (3373, 6123760), (3734, 5531720), (6746, 3061880), (7468, 2765860), (9335, 2212688), (13492, 1530940), (14936, 1382930), (16865, 1224752), (18670, 1106344), (26984, 765470), (29872, 691465), (33730, 612376), (37340, 553172), (53968, 382735), (67460, 306188), (74680, 276586), (76547, 269840), (134920, 153094), (138293, 149360)]