218221036120

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{6871}}^1$

素因数の和:7217

約数の個数: 128

約数和(自身を含む): 509785850880

約数和(自身を除く): 291564814760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 71, 106, 142, 211, 212, 265, 284, 355, 422, 424, 530, 568, 710, 844, 1055, 1060, 1420, 1688, 2110, 2120, 2840, 3763, 4220, 6871, 7526, 8440, 11183, 13742, 14981, 15052, 18815, 22366, 27484, 29962, 30104, 34355, 37630, 44732, 54968, 55915, 59924, 68710, 74905, 75260, 89464, 111830, 119848, 137420, 149810, 150520, 223660, 274840, 299620, 364163, 447320, 487841, 599240, 728326, 793993, 975682, 1449781, 1456652, 1587986, 1820815, 1951364, 2439205, 2899562, 2913304, 3175972, 3641630, 3902728, 3969965, 4878410, 5799124, 6351944, 7248905, 7283260, 7939930, 9756820, 11598248, 14497810, 14566520, 15879860, 19513640, 25855573, 28995620, 31759720, 51711146, 57991240, 76838393, 102934451, 103422292, 129277865, 153676786, 205868902, 206844584, 258555730, 307353572, 384191965, 411737804, 514672255, 517111460, 614707144, 768383930, 823475608, 1029344510, 1034222920, 1536767860, 2058689020, 3073535720, 4117378040, 5455525903, 10911051806, 21822103612, 27277629515, 43644207224, 54555259030, 109110518060, 218221036120]

約数ペア:

[(1, 218221036120), (2, 109110518060), (4, 54555259030), (5, 43644207224), (8, 27277629515), (10, 21822103612), (20, 10911051806), (40, 5455525903), (53, 4117378040), (71, 3073535720), (106, 2058689020), (142, 1536767860), (211, 1034222920), (212, 1029344510), (265, 823475608), (284, 768383930), (355, 614707144), (422, 517111460), (424, 514672255), (530, 411737804), (568, 384191965), (710, 307353572), (844, 258555730), (1055, 206844584), (1060, 205868902), (1420, 153676786), (1688, 129277865), (2110, 103422292), (2120, 102934451), (2840, 76838393), (3763, 57991240), (4220, 51711146), (6871, 31759720), (7526, 28995620), (8440, 25855573), (11183, 19513640), (13742, 15879860), (14981, 14566520), (15052, 14497810), (18815, 11598248), (22366, 9756820), (27484, 7939930), (29962, 7283260), (30104, 7248905), (34355, 6351944), (37630, 5799124), (44732, 4878410), (54968, 3969965), (55915, 3902728), (59924, 3641630), (68710, 3175972), (74905, 2913304), (75260, 2899562), (89464, 2439205), (111830, 1951364), (119848, 1820815), (137420, 1587986), (149810, 1456652), (150520, 1449781), (223660, 975682), (274840, 793993), (299620, 728326), (364163, 599240), (447320, 487841)]