18220560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:157

約数の個数: 120

約数和(自身を含む): 59103360

約数和(自身を除く): 40882800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 79, 80, 93, 120, 124, 155, 158, 186, 237, 240, 248, 310, 316, 372, 395, 465, 474, 496, 620, 632, 744, 790, 930, 948, 961, 1185, 1240, 1264, 1488, 1580, 1860, 1896, 1922, 2370, 2449, 2480, 2883, 3160, 3720, 3792, 3844, 4740, 4805, 4898, 5766, 6320, 7347, 7440, 7688, 9480, 9610, 9796, 11532, 12245, 14415, 14694, 15376, 18960, 19220, 19592, 23064, 24490, 28830, 29388, 36735, 38440, 39184, 46128, 48980, 57660, 58776, 73470, 75919, 76880, 97960, 115320, 117552, 146940, 151838, 195920, 227757, 230640, 293880, 303676, 379595, 455514, 587760, 607352, 759190, 911028, 1138785, 1214704, 1518380, 1822056, 2277570, 3036760, 3644112, 4555140, 6073520, 9110280, 18220560]

約数ペア:

[(1, 18220560), (2, 9110280), (3, 6073520), (4, 4555140), (5, 3644112), (6, 3036760), (8, 2277570), (10, 1822056), (12, 1518380), (15, 1214704), (16, 1138785), (20, 911028), (24, 759190), (30, 607352), (31, 587760), (40, 455514), (48, 379595), (60, 303676), (62, 293880), (79, 230640), (80, 227757), (93, 195920), (120, 151838), (124, 146940), (155, 117552), (158, 115320), (186, 97960), (237, 76880), (240, 75919), (248, 73470), (310, 58776), (316, 57660), (372, 48980), (395, 46128), (465, 39184), (474, 38440), (496, 36735), (620, 29388), (632, 28830), (744, 24490), (790, 23064), (930, 19592), (948, 19220), (961, 18960), (1185, 15376), (1240, 14694), (1264, 14415), (1488, 12245), (1580, 11532), (1860, 9796), (1896, 9610), (1922, 9480), (2370, 7688), (2449, 7440), (2480, 7347), (2883, 6320), (3160, 5766), (3720, 4898), (3792, 4805), (3844, 4740)]