2021640320

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{2521}}^1$

素因数の和:2726

約数の個数: 128

約数和(自身を含む): 5556470400

約数和(自身を除く): 3534830080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 179, 224, 280, 320, 358, 448, 560, 640, 716, 895, 896, 1120, 1253, 1432, 1790, 2240, 2506, 2521, 2864, 3580, 4480, 5012, 5042, 5728, 6265, 7160, 10024, 10084, 11456, 12530, 12605, 14320, 17647, 20048, 20168, 22912, 25060, 25210, 28640, 35294, 40096, 40336, 50120, 50420, 57280, 70588, 80192, 80672, 88235, 100240, 100840, 114560, 141176, 160384, 161344, 176470, 200480, 201680, 282352, 322688, 352940, 400960, 403360, 451259, 564704, 705880, 801920, 806720, 902518, 1129408, 1411760, 1613440, 1805036, 2256295, 2258816, 2823520, 3158813, 3610072, 4512590, 5647040, 6317626, 7220144, 9025180, 11294080, 12635252, 14440288, 15794065, 18050360, 25270504, 28880576, 31588130, 36100720, 50541008, 57761152, 63176260, 72201440, 101082016, 126352520, 144402880, 202164032, 252705040, 288805760, 404328064, 505410080, 1010820160, 2021640320]

約数ペア:

[(1, 2021640320), (2, 1010820160), (4, 505410080), (5, 404328064), (7, 288805760), (8, 252705040), (10, 202164032), (14, 144402880), (16, 126352520), (20, 101082016), (28, 72201440), (32, 63176260), (35, 57761152), (40, 50541008), (56, 36100720), (64, 31588130), (70, 28880576), (80, 25270504), (112, 18050360), (128, 15794065), (140, 14440288), (160, 12635252), (179, 11294080), (224, 9025180), (280, 7220144), (320, 6317626), (358, 5647040), (448, 4512590), (560, 3610072), (640, 3158813), (716, 2823520), (895, 2258816), (896, 2256295), (1120, 1805036), (1253, 1613440), (1432, 1411760), (1790, 1129408), (2240, 902518), (2506, 806720), (2521, 801920), (2864, 705880), (3580, 564704), (4480, 451259), (5012, 403360), (5042, 400960), (5728, 352940), (6265, 322688), (7160, 282352), (10024, 201680), (10084, 200480), (11456, 176470), (12530, 161344), (12605, 160384), (14320, 141176), (17647, 114560), (20048, 100840), (20168, 100240), (22912, 88235), (25060, 80672), (25210, 80192), (28640, 70588), (35294, 57280), (40096, 50420), (40336, 50120)]