39872800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 144

約数和(自身を含む): 111367872

約数和(自身を除く): 71495072

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 25, 32, 40, 44, 46, 50, 55, 80, 88, 92, 100, 110, 115, 160, 176, 184, 197, 200, 220, 230, 253, 275, 352, 368, 394, 400, 440, 460, 506, 550, 575, 736, 788, 800, 880, 920, 985, 1012, 1100, 1150, 1265, 1576, 1760, 1840, 1970, 2024, 2167, 2200, 2300, 2530, 3152, 3680, 3940, 4048, 4334, 4400, 4531, 4600, 4925, 5060, 6304, 6325, 7880, 8096, 8668, 8800, 9062, 9200, 9850, 10120, 10835, 12650, 15760, 17336, 18124, 18400, 19700, 20240, 21670, 22655, 25300, 31520, 34672, 36248, 39400, 40480, 43340, 45310, 49841, 50600, 54175, 69344, 72496, 78800, 86680, 90620, 99682, 101200, 108350, 113275, 144992, 157600, 173360, 181240, 199364, 202400, 216700, 226550, 249205, 346720, 362480, 398728, 433400, 453100, 498410, 724960, 797456, 866800, 906200, 996820, 1246025, 1594912, 1733600, 1812400, 1993640, 2492050, 3624800, 3987280, 4984100, 7974560, 9968200, 19936400, 39872800]

約数ペア:

[(1, 39872800), (2, 19936400), (4, 9968200), (5, 7974560), (8, 4984100), (10, 3987280), (11, 3624800), (16, 2492050), (20, 1993640), (22, 1812400), (23, 1733600), (25, 1594912), (32, 1246025), (40, 996820), (44, 906200), (46, 866800), (50, 797456), (55, 724960), (80, 498410), (88, 453100), (92, 433400), (100, 398728), (110, 362480), (115, 346720), (160, 249205), (176, 226550), (184, 216700), (197, 202400), (200, 199364), (220, 181240), (230, 173360), (253, 157600), (275, 144992), (352, 113275), (368, 108350), (394, 101200), (400, 99682), (440, 90620), (460, 86680), (506, 78800), (550, 72496), (575, 69344), (736, 54175), (788, 50600), (800, 49841), (880, 45310), (920, 43340), (985, 40480), (1012, 39400), (1100, 36248), (1150, 34672), (1265, 31520), (1576, 25300), (1760, 22655), (1840, 21670), (1970, 20240), (2024, 19700), (2167, 18400), (2200, 18124), (2300, 17336), (2530, 15760), (3152, 12650), (3680, 10835), (3940, 10120), (4048, 9850), (4334, 9200), (4400, 9062), (4531, 8800), (4600, 8668), (4925, 8096), (5060, 7880), (6304, 6325)]