199426720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1297}}^1$

素因数の和:1374

約数の個数: 72

約数和(自身を含む): 487209492

約数和(自身を除く): 287782772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 1240, 1297, 1922, 2480, 2594, 3844, 4805, 4960, 5188, 6485, 7688, 9610, 10376, 12970, 15376, 19220, 20752, 25940, 30752, 38440, 40207, 41504, 51880, 76880, 80414, 103760, 153760, 160828, 201035, 207520, 321656, 402070, 643312, 804140, 1246417, 1286624, 1608280, 2492834, 3216560, 4985668, 6232085, 6433120, 9971336, 12464170, 19942672, 24928340, 39885344, 49856680, 99713360, 199426720]

約数ペア:

[(1, 199426720), (2, 99713360), (4, 49856680), (5, 39885344), (8, 24928340), (10, 19942672), (16, 12464170), (20, 9971336), (31, 6433120), (32, 6232085), (40, 4985668), (62, 3216560), (80, 2492834), (124, 1608280), (155, 1286624), (160, 1246417), (248, 804140), (310, 643312), (496, 402070), (620, 321656), (961, 207520), (992, 201035), (1240, 160828), (1297, 153760), (1922, 103760), (2480, 80414), (2594, 76880), (3844, 51880), (4805, 41504), (4960, 40207), (5188, 38440), (6485, 30752), (7688, 25940), (9610, 20752), (10376, 19220), (12970, 15376)]