21320880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^4\times {\mathrm{37}}^1$

素因数の和:81

約数の個数: 200

約数和(自身を含む): 79189872

約数和(自身を除く): 57868992

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 37, 40, 42, 48, 49, 56, 60, 70, 74, 80, 84, 98, 105, 111, 112, 120, 140, 147, 148, 168, 185, 196, 210, 222, 240, 245, 259, 280, 294, 296, 336, 343, 370, 392, 420, 444, 490, 518, 555, 560, 588, 592, 686, 735, 740, 777, 784, 840, 888, 980, 1029, 1036, 1110, 1176, 1295, 1372, 1470, 1480, 1554, 1680, 1715, 1776, 1813, 1960, 2058, 2072, 2220, 2352, 2401, 2590, 2744, 2940, 2960, 3108, 3430, 3626, 3885, 3920, 4116, 4144, 4440, 4802, 5145, 5180, 5439, 5488, 5880, 6216, 6860, 7203, 7252, 7770, 8232, 8880, 9065, 9604, 10290, 10360, 10878, 11760, 12005, 12432, 12691, 13720, 14406, 14504, 15540, 16464, 18130, 19208, 20580, 20720, 21756, 24010, 25382, 27195, 27440, 28812, 29008, 31080, 36015, 36260, 38073, 38416, 41160, 43512, 48020, 50764, 54390, 57624, 62160, 63455, 72030, 72520, 76146, 82320, 87024, 88837, 96040, 101528, 108780, 115248, 126910, 144060, 145040, 152292, 177674, 190365, 192080, 203056, 217560, 253820, 266511, 288120, 304584, 355348, 380730, 435120, 444185, 507640, 533022, 576240, 609168, 710696, 761460, 888370, 1015280, 1066044, 1332555, 1421392, 1522920, 1776740, 2132088, 2665110, 3045840, 3553480, 4264176, 5330220, 7106960, 10660440, 21320880]

約数ペア:

[(1, 21320880), (2, 10660440), (3, 7106960), (4, 5330220), (5, 4264176), (6, 3553480), (7, 3045840), (8, 2665110), (10, 2132088), (12, 1776740), (14, 1522920), (15, 1421392), (16, 1332555), (20, 1066044), (21, 1015280), (24, 888370), (28, 761460), (30, 710696), (35, 609168), (37, 576240), (40, 533022), (42, 507640), (48, 444185), (49, 435120), (56, 380730), (60, 355348), (70, 304584), (74, 288120), (80, 266511), (84, 253820), (98, 217560), (105, 203056), (111, 192080), (112, 190365), (120, 177674), (140, 152292), (147, 145040), (148, 144060), (168, 126910), (185, 115248), (196, 108780), (210, 101528), (222, 96040), (240, 88837), (245, 87024), (259, 82320), (280, 76146), (294, 72520), (296, 72030), (336, 63455), (343, 62160), (370, 57624), (392, 54390), (420, 50764), (444, 48020), (490, 43512), (518, 41160), (555, 38416), (560, 38073), (588, 36260), (592, 36015), (686, 31080), (735, 29008), (740, 28812), (777, 27440), (784, 27195), (840, 25382), (888, 24010), (980, 21756), (1029, 20720), (1036, 20580), (1110, 19208), (1176, 18130), (1295, 16464), (1372, 15540), (1470, 14504), (1480, 14406), (1554, 13720), (1680, 12691), (1715, 12432), (1776, 12005), (1813, 11760), (1960, 10878), (2058, 10360), (2072, 10290), (2220, 9604), (2352, 9065), (2401, 8880), (2590, 8232), (2744, 7770), (2940, 7252), (2960, 7203), (3108, 6860), (3430, 6216), (3626, 5880), (3885, 5488), (3920, 5439), (4116, 5180), (4144, 5145), (4440, 4802)]