1798501040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{8009}}^1$

素因数の和:8430

約数の個数: 80

約数和(自身を含む): 4791389760

約数和(自身を除く): 2992888720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 401, 560, 802, 1604, 2005, 2807, 3208, 4010, 5614, 6416, 8009, 8020, 11228, 14035, 16018, 16040, 22456, 28070, 32036, 32080, 40045, 44912, 56063, 56140, 64072, 80090, 112126, 112280, 128144, 160180, 224252, 224560, 280315, 320360, 448504, 560630, 640720, 897008, 1121260, 2242520, 3211609, 4485040, 6423218, 12846436, 16058045, 22481263, 25692872, 32116090, 44962526, 51385744, 64232180, 89925052, 112406315, 128464360, 179850104, 224812630, 256928720, 359700208, 449625260, 899250520, 1798501040]

約数ペア:

[(1, 1798501040), (2, 899250520), (4, 449625260), (5, 359700208), (7, 256928720), (8, 224812630), (10, 179850104), (14, 128464360), (16, 112406315), (20, 89925052), (28, 64232180), (35, 51385744), (40, 44962526), (56, 32116090), (70, 25692872), (80, 22481263), (112, 16058045), (140, 12846436), (280, 6423218), (401, 4485040), (560, 3211609), (802, 2242520), (1604, 1121260), (2005, 897008), (2807, 640720), (3208, 560630), (4010, 448504), (5614, 320360), (6416, 280315), (8009, 224560), (8020, 224252), (11228, 160180), (14035, 128144), (16018, 112280), (16040, 112126), (22456, 80090), (28070, 64072), (32036, 56140), (32080, 56063), (40045, 44912)]