31488380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 88252416

約数和(自身を除く): 56764036

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 49, 55, 70, 77, 92, 98, 110, 115, 127, 140, 154, 161, 196, 220, 230, 245, 253, 254, 308, 322, 385, 460, 490, 506, 508, 539, 635, 644, 770, 805, 889, 980, 1012, 1078, 1127, 1265, 1270, 1397, 1540, 1610, 1771, 1778, 2156, 2254, 2530, 2540, 2695, 2794, 2921, 3220, 3542, 3556, 4445, 4508, 5060, 5390, 5588, 5635, 5842, 6223, 6985, 7084, 8855, 8890, 9779, 10780, 11270, 11684, 12397, 12446, 13970, 14605, 17710, 17780, 19558, 20447, 22540, 24794, 24892, 27940, 29210, 31115, 32131, 35420, 39116, 40894, 48895, 49588, 58420, 61985, 62230, 64262, 68453, 81788, 97790, 102235, 123970, 124460, 128524, 136906, 143129, 160655, 195580, 204470, 224917, 247940, 273812, 286258, 321310, 342265, 408940, 449834, 572516, 642620, 684530, 715645, 899668, 1124585, 1369060, 1431290, 1574419, 2249170, 2862580, 3148838, 4498340, 6297676, 7872095, 15744190, 31488380]

約数ペア:

[(1, 31488380), (2, 15744190), (4, 7872095), (5, 6297676), (7, 4498340), (10, 3148838), (11, 2862580), (14, 2249170), (20, 1574419), (22, 1431290), (23, 1369060), (28, 1124585), (35, 899668), (44, 715645), (46, 684530), (49, 642620), (55, 572516), (70, 449834), (77, 408940), (92, 342265), (98, 321310), (110, 286258), (115, 273812), (127, 247940), (140, 224917), (154, 204470), (161, 195580), (196, 160655), (220, 143129), (230, 136906), (245, 128524), (253, 124460), (254, 123970), (308, 102235), (322, 97790), (385, 81788), (460, 68453), (490, 64262), (506, 62230), (508, 61985), (539, 58420), (635, 49588), (644, 48895), (770, 40894), (805, 39116), (889, 35420), (980, 32131), (1012, 31115), (1078, 29210), (1127, 27940), (1265, 24892), (1270, 24794), (1397, 22540), (1540, 20447), (1610, 19558), (1771, 17780), (1778, 17710), (2156, 14605), (2254, 13970), (2530, 12446), (2540, 12397), (2695, 11684), (2794, 11270), (2921, 10780), (3220, 9779), (3542, 8890), (3556, 8855), (4445, 7084), (4508, 6985), (5060, 6223), (5390, 5842), (5588, 5635)]