639043920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28631}}^1$

素因数の和:28681

約数の個数: 120

約数和(自身を含む): 2215429632

約数和(自身を除く): 1576385712

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3720, 4464, 5580, 7440, 11160, 22320, 28631, 57262, 85893, 114524, 143155, 171786, 229048, 257679, 286310, 343572, 429465, 458096, 515358, 572620, 687144, 858930, 887561, 1030716, 1145240, 1288395, 1374288, 1717860, 1775122, 2061432, 2290480, 2576790, 2662683, 3435720, 3550244, 4122864, 4437805, 5153580, 5325366, 6871440, 7100488, 7988049, 8875610, 10307160, 10650732, 13313415, 14200976, 15976098, 17751220, 20614320, 21301464, 26626830, 31952196, 35502440, 39940245, 42602928, 53253660, 63904392, 71004880, 79880490, 106507320, 127808784, 159760980, 213014640, 319521960, 639043920]

約数ペア:

[(1, 639043920), (2, 319521960), (3, 213014640), (4, 159760980), (5, 127808784), (6, 106507320), (8, 79880490), (9, 71004880), (10, 63904392), (12, 53253660), (15, 42602928), (16, 39940245), (18, 35502440), (20, 31952196), (24, 26626830), (30, 21301464), (31, 20614320), (36, 17751220), (40, 15976098), (45, 14200976), (48, 13313415), (60, 10650732), (62, 10307160), (72, 8875610), (80, 7988049), (90, 7100488), (93, 6871440), (120, 5325366), (124, 5153580), (144, 4437805), (155, 4122864), (180, 3550244), (186, 3435720), (240, 2662683), (248, 2576790), (279, 2290480), (310, 2061432), (360, 1775122), (372, 1717860), (465, 1374288), (496, 1288395), (558, 1145240), (620, 1030716), (720, 887561), (744, 858930), (930, 687144), (1116, 572620), (1240, 515358), (1395, 458096), (1488, 429465), (1860, 343572), (2232, 286310), (2480, 257679), (2790, 229048), (3720, 171786), (4464, 143155), (5580, 114524), (7440, 85893), (11160, 57262), (22320, 28631)]