1900722040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{487}}^1$

素因数の和:821

約数の個数: 128

約数和(自身を含む): 5008988160

約数和(自身を除く): 3108266120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 263, 265, 280, 371, 424, 487, 526, 530, 742, 974, 1052, 1060, 1315, 1484, 1841, 1855, 1948, 2104, 2120, 2435, 2630, 2968, 3409, 3682, 3710, 3896, 4870, 5260, 6818, 7364, 7420, 9205, 9740, 10520, 13636, 13939, 14728, 14840, 17045, 18410, 19480, 25811, 27272, 27878, 34090, 36820, 51622, 55756, 68180, 69695, 73640, 97573, 103244, 111512, 128081, 129055, 136360, 139390, 180677, 195146, 206488, 256162, 258110, 278780, 361354, 390292, 487865, 512324, 516220, 557560, 640405, 722708, 780584, 896567, 903385, 975730, 1024648, 1032440, 1280810, 1445416, 1793134, 1806770, 1951460, 2561620, 3586268, 3613540, 3902920, 4482835, 5123240, 6788293, 7172536, 7227080, 8965670, 13576586, 17931340, 27153172, 33941465, 35862680, 47518051, 54306344, 67882930, 95036102, 135765860, 190072204, 237590255, 271531720, 380144408, 475180510, 950361020, 1900722040]

約数ペア:

[(1, 1900722040), (2, 950361020), (4, 475180510), (5, 380144408), (7, 271531720), (8, 237590255), (10, 190072204), (14, 135765860), (20, 95036102), (28, 67882930), (35, 54306344), (40, 47518051), (53, 35862680), (56, 33941465), (70, 27153172), (106, 17931340), (140, 13576586), (212, 8965670), (263, 7227080), (265, 7172536), (280, 6788293), (371, 5123240), (424, 4482835), (487, 3902920), (526, 3613540), (530, 3586268), (742, 2561620), (974, 1951460), (1052, 1806770), (1060, 1793134), (1315, 1445416), (1484, 1280810), (1841, 1032440), (1855, 1024648), (1948, 975730), (2104, 903385), (2120, 896567), (2435, 780584), (2630, 722708), (2968, 640405), (3409, 557560), (3682, 516220), (3710, 512324), (3896, 487865), (4870, 390292), (5260, 361354), (6818, 278780), (7364, 258110), (7420, 256162), (9205, 206488), (9740, 195146), (10520, 180677), (13636, 139390), (13939, 136360), (14728, 129055), (14840, 128081), (17045, 111512), (18410, 103244), (19480, 97573), (25811, 73640), (27272, 69695), (27878, 68180), (34090, 55756), (36820, 51622)]