2780490064640

素因数分解:

$2^8\times 5^1\times {\mathrm{1327}}^1\times {\mathrm{1636969}}^1$

素因数の和:1638317

約数の個数: 72

約数和(自身を含む): 6665165626560

約数和(自身を除く): 3884675561920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1327, 2654, 5308, 6635, 10616, 13270, 21232, 26540, 42464, 53080, 84928, 106160, 169856, 212320, 339712, 424640, 849280, 1636969, 1698560, 3273938, 6547876, 8184845, 13095752, 16369690, 26191504, 32739380, 52383008, 65478760, 104766016, 130957520, 209532032, 261915040, 419064064, 523830080, 1047660160, 2095320320, 2172257863, 4344515726, 8689031452, 10861289315, 17378062904, 21722578630, 34756125808, 43445157260, 69512251616, 86890314520, 139024503232, 173780629040, 278049006464, 347561258080, 556098012928, 695122516160, 1390245032320, 2780490064640]

約数ペア:

[(1, 2780490064640), (2, 1390245032320), (4, 695122516160), (5, 556098012928), (8, 347561258080), (10, 278049006464), (16, 173780629040), (20, 139024503232), (32, 86890314520), (40, 69512251616), (64, 43445157260), (80, 34756125808), (128, 21722578630), (160, 17378062904), (256, 10861289315), (320, 8689031452), (640, 4344515726), (1280, 2172257863), (1327, 2095320320), (2654, 1047660160), (5308, 523830080), (6635, 419064064), (10616, 261915040), (13270, 209532032), (21232, 130957520), (26540, 104766016), (42464, 65478760), (53080, 52383008), (84928, 32739380), (106160, 26191504), (169856, 16369690), (212320, 13095752), (339712, 8184845), (424640, 6547876), (849280, 3273938), (1636969, 1698560)]