72791720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1249}}^1$

素因数の和:1338

約数の個数: 64

約数和(自身を含む): 172800000

約数和(自身を除く): 100008280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 47, 62, 94, 124, 155, 188, 235, 248, 310, 376, 470, 620, 940, 1240, 1249, 1457, 1880, 2498, 2914, 4996, 5828, 6245, 7285, 9992, 11656, 12490, 14570, 24980, 29140, 38719, 49960, 58280, 58703, 77438, 117406, 154876, 193595, 234812, 293515, 309752, 387190, 469624, 587030, 774380, 1174060, 1548760, 1819793, 2348120, 3639586, 7279172, 9098965, 14558344, 18197930, 36395860, 72791720]

約数ペア:

[(1, 72791720), (2, 36395860), (4, 18197930), (5, 14558344), (8, 9098965), (10, 7279172), (20, 3639586), (31, 2348120), (40, 1819793), (47, 1548760), (62, 1174060), (94, 774380), (124, 587030), (155, 469624), (188, 387190), (235, 309752), (248, 293515), (310, 234812), (376, 193595), (470, 154876), (620, 117406), (940, 77438), (1240, 58703), (1249, 58280), (1457, 49960), (1880, 38719), (2498, 29140), (2914, 24980), (4996, 14570), (5828, 12490), (6245, 11656), (7285, 9992)]