127888640

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:356

約数の個数: 144

約数和(自身を含む): 346139136

約数和(自身を除く): 218250496

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 256, 293, 310, 320, 341, 352, 440, 496, 586, 620, 640, 682, 704, 880, 992, 1172, 1240, 1280, 1364, 1408, 1465, 1705, 1760, 1984, 2344, 2480, 2728, 2816, 2930, 3223, 3410, 3520, 3968, 4688, 4960, 5456, 5860, 6446, 6820, 7040, 7936, 9083, 9376, 9920, 10912, 11720, 12892, 13640, 14080, 16115, 18166, 18752, 19840, 21824, 23440, 25784, 27280, 32230, 36332, 37504, 39680, 43648, 45415, 46880, 51568, 54560, 64460, 72664, 75008, 87296, 90830, 93760, 99913, 103136, 109120, 128920, 145328, 181660, 187520, 199826, 206272, 218240, 257840, 290656, 363320, 375040, 399652, 412544, 436480, 499565, 515680, 581312, 726640, 799304, 825088, 999130, 1031360, 1162624, 1453280, 1598608, 1998260, 2062720, 2325248, 2906560, 3197216, 3996520, 4125440, 5813120, 6394432, 7993040, 11626240, 12788864, 15986080, 25577728, 31972160, 63944320, 127888640]

約数ペア:

[(1, 127888640), (2, 63944320), (4, 31972160), (5, 25577728), (8, 15986080), (10, 12788864), (11, 11626240), (16, 7993040), (20, 6394432), (22, 5813120), (31, 4125440), (32, 3996520), (40, 3197216), (44, 2906560), (55, 2325248), (62, 2062720), (64, 1998260), (80, 1598608), (88, 1453280), (110, 1162624), (124, 1031360), (128, 999130), (155, 825088), (160, 799304), (176, 726640), (220, 581312), (248, 515680), (256, 499565), (293, 436480), (310, 412544), (320, 399652), (341, 375040), (352, 363320), (440, 290656), (496, 257840), (586, 218240), (620, 206272), (640, 199826), (682, 187520), (704, 181660), (880, 145328), (992, 128920), (1172, 109120), (1240, 103136), (1280, 99913), (1364, 93760), (1408, 90830), (1465, 87296), (1705, 75008), (1760, 72664), (1984, 64460), (2344, 54560), (2480, 51568), (2728, 46880), (2816, 45415), (2930, 43648), (3223, 39680), (3410, 37504), (3520, 36332), (3968, 32230), (4688, 27280), (4960, 25784), (5456, 23440), (5860, 21824), (6446, 19840), (6820, 18752), (7040, 18166), (7936, 16115), (9083, 14080), (9376, 13640), (9920, 12892), (10912, 11720)]