260091220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 553246848

約数和(自身を除く): 293155628

約数列:

[1, 2, 4, 5, 10, 20, 197, 251, 263, 394, 502, 526, 788, 985, 1004, 1052, 1255, 1315, 1970, 2510, 2630, 3940, 5020, 5260, 49447, 51811, 66013, 98894, 103622, 132026, 197788, 207244, 247235, 259055, 264052, 330065, 494470, 518110, 660130, 988940, 1036220, 1320260, 13004561, 26009122, 52018244, 65022805, 130045610, 260091220]

約数ペア:

[(1, 260091220), (2, 130045610), (4, 65022805), (5, 52018244), (10, 26009122), (20, 13004561), (197, 1320260), (251, 1036220), (263, 988940), (394, 660130), (502, 518110), (526, 494470), (788, 330065), (985, 264052), (1004, 259055), (1052, 247235), (1255, 207244), (1315, 197788), (1970, 132026), (2510, 103622), (2630, 98894), (3940, 66013), (5020, 51811), (5260, 49447)]