291289760740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{827}}^1\times {\mathrm{17989}}^1$

素因数の和:18925

約数の個数: 96

約数和(自身を含む): 675669859200

約数和(自身を除く): 384380098460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 827, 890, 979, 1654, 1780, 1958, 3308, 3916, 4135, 4895, 8270, 9097, 9790, 16540, 17989, 18194, 19580, 35978, 36388, 45485, 71956, 73603, 89945, 90970, 147206, 179890, 181940, 197879, 294412, 359780, 368015, 395758, 736030, 791516, 809633, 989395, 1472060, 1601021, 1619266, 1978790, 3202042, 3238532, 3957580, 4048165, 6404084, 8005105, 8096330, 14876903, 16010210, 16192660, 17611231, 29753806, 32020420, 35222462, 59507612, 70444924, 74384515, 88056155, 148769030, 163645933, 176112310, 297538060, 327291866, 352224620, 654583732, 818229665, 1324044367, 1636459330, 2648088734, 3272918660, 5296177468, 6620221835, 13240443670, 14564488037, 26480887340, 29128976074, 58257952148, 72822440185, 145644880370, 291289760740]

約数ペア:

[(1, 291289760740), (2, 145644880370), (4, 72822440185), (5, 58257952148), (10, 29128976074), (11, 26480887340), (20, 14564488037), (22, 13240443670), (44, 6620221835), (55, 5296177468), (89, 3272918660), (110, 2648088734), (178, 1636459330), (220, 1324044367), (356, 818229665), (445, 654583732), (827, 352224620), (890, 327291866), (979, 297538060), (1654, 176112310), (1780, 163645933), (1958, 148769030), (3308, 88056155), (3916, 74384515), (4135, 70444924), (4895, 59507612), (8270, 35222462), (9097, 32020420), (9790, 29753806), (16540, 17611231), (17989, 16192660), (18194, 16010210), (19580, 14876903), (35978, 8096330), (36388, 8005105), (45485, 6404084), (71956, 4048165), (73603, 3957580), (89945, 3238532), (90970, 3202042), (147206, 1978790), (179890, 1619266), (181940, 1601021), (197879, 1472060), (294412, 989395), (359780, 809633), (368015, 791516), (395758, 736030)]