20804092120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{37889}}^1$

素因数の和:37997

約数の個数: 128

約数和(自身を含む): 55980201600

約数和(自身を除く): 35176109480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 53, 56, 70, 74, 106, 140, 148, 185, 212, 259, 265, 280, 296, 370, 371, 424, 518, 530, 740, 742, 1036, 1060, 1295, 1480, 1484, 1855, 1961, 2072, 2120, 2590, 2968, 3710, 3922, 5180, 7420, 7844, 9805, 10360, 13727, 14840, 15688, 19610, 27454, 37889, 39220, 54908, 68635, 75778, 78440, 109816, 137270, 151556, 189445, 265223, 274540, 303112, 378890, 530446, 549080, 757780, 1060892, 1326115, 1401893, 1515560, 2008117, 2121784, 2652230, 2803786, 4016234, 5304460, 5607572, 7009465, 8032468, 9813251, 10040585, 10608920, 11215144, 14018930, 14056819, 16064936, 19626502, 20081170, 28037860, 28113638, 39253004, 40162340, 49066255, 56075720, 56227276, 70284095, 74300329, 78506008, 80324680, 98132510, 112454552, 140568190, 148600658, 196265020, 281136380, 297201316, 371501645, 392530040, 520102303, 562272760, 594402632, 743003290, 1040204606, 1486006580, 2080409212, 2600511515, 2972013160, 4160818424, 5201023030, 10402046060, 20804092120]

約数ペア:

[(1, 20804092120), (2, 10402046060), (4, 5201023030), (5, 4160818424), (7, 2972013160), (8, 2600511515), (10, 2080409212), (14, 1486006580), (20, 1040204606), (28, 743003290), (35, 594402632), (37, 562272760), (40, 520102303), (53, 392530040), (56, 371501645), (70, 297201316), (74, 281136380), (106, 196265020), (140, 148600658), (148, 140568190), (185, 112454552), (212, 98132510), (259, 80324680), (265, 78506008), (280, 74300329), (296, 70284095), (370, 56227276), (371, 56075720), (424, 49066255), (518, 40162340), (530, 39253004), (740, 28113638), (742, 28037860), (1036, 20081170), (1060, 19626502), (1295, 16064936), (1480, 14056819), (1484, 14018930), (1855, 11215144), (1961, 10608920), (2072, 10040585), (2120, 9813251), (2590, 8032468), (2968, 7009465), (3710, 5607572), (3922, 5304460), (5180, 4016234), (7420, 2803786), (7844, 2652230), (9805, 2121784), (10360, 2008117), (13727, 1515560), (14840, 1401893), (15688, 1326115), (19610, 1060892), (27454, 757780), (37889, 549080), (39220, 530446), (54908, 378890), (68635, 303112), (75778, 274540), (78440, 265223), (109816, 189445), (137270, 151556)]