21757680

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1439}}^1$

素因数の和:1468

約数の個数: 160

約数和(自身を含む): 85708800

約数和(自身を除く): 63951120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1439, 1512, 1680, 1890, 2160, 2520, 2878, 3024, 3780, 4317, 5040, 5756, 7195, 7560, 8634, 10073, 11512, 12951, 14390, 15120, 17268, 20146, 21585, 23024, 25902, 28780, 30219, 34536, 38853, 40292, 43170, 50365, 51804, 57560, 60438, 64755, 69072, 77706, 80584, 86340, 90657, 100730, 103608, 115120, 120876, 129510, 151095, 155412, 161168, 172680, 181314, 194265, 201460, 207216, 241752, 259020, 271971, 302190, 310824, 345360, 362628, 388530, 402920, 453285, 483504, 518040, 543942, 604380, 621648, 725256, 777060, 805840, 906570, 1036080, 1087884, 1208760, 1359855, 1450512, 1554120, 1813140, 2175768, 2417520, 2719710, 3108240, 3626280, 4351536, 5439420, 7252560, 10878840, 21757680]

約数ペア:

[(1, 21757680), (2, 10878840), (3, 7252560), (4, 5439420), (5, 4351536), (6, 3626280), (7, 3108240), (8, 2719710), (9, 2417520), (10, 2175768), (12, 1813140), (14, 1554120), (15, 1450512), (16, 1359855), (18, 1208760), (20, 1087884), (21, 1036080), (24, 906570), (27, 805840), (28, 777060), (30, 725256), (35, 621648), (36, 604380), (40, 543942), (42, 518040), (45, 483504), (48, 453285), (54, 402920), (56, 388530), (60, 362628), (63, 345360), (70, 310824), (72, 302190), (80, 271971), (84, 259020), (90, 241752), (105, 207216), (108, 201460), (112, 194265), (120, 181314), (126, 172680), (135, 161168), (140, 155412), (144, 151095), (168, 129510), (180, 120876), (189, 115120), (210, 103608), (216, 100730), (240, 90657), (252, 86340), (270, 80584), (280, 77706), (315, 69072), (336, 64755), (360, 60438), (378, 57560), (420, 51804), (432, 50365), (504, 43170), (540, 40292), (560, 38853), (630, 34536), (720, 30219), (756, 28780), (840, 25902), (945, 23024), (1008, 21585), (1080, 20146), (1260, 17268), (1439, 15120), (1512, 14390), (1680, 12951), (1890, 11512), (2160, 10073), (2520, 8634), (2878, 7560), (3024, 7195), (3780, 5756), (4317, 5040)]