2019900890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1\times {\mathrm{839}}^1$

素因数の和:1227

約数の個数: 64

約数和(自身を含む): 4205537280

約数和(自身を除く): 2185636390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 163, 211, 326, 422, 815, 839, 1055, 1141, 1477, 1630, 1678, 2110, 2282, 2954, 4195, 5705, 5873, 7385, 8390, 11410, 11746, 14770, 29365, 34393, 58730, 68786, 136757, 171965, 177029, 240751, 273514, 343930, 354058, 481502, 683785, 885145, 957299, 1203755, 1239203, 1367570, 1770290, 1914598, 2407510, 2478406, 4786495, 6196015, 9572990, 12392030, 28855727, 57711454, 144278635, 201990089, 288557270, 403980178, 1009950445, 2019900890]

約数ペア:

[(1, 2019900890), (2, 1009950445), (5, 403980178), (7, 288557270), (10, 201990089), (14, 144278635), (35, 57711454), (70, 28855727), (163, 12392030), (211, 9572990), (326, 6196015), (422, 4786495), (815, 2478406), (839, 2407510), (1055, 1914598), (1141, 1770290), (1477, 1367570), (1630, 1239203), (1678, 1203755), (2110, 957299), (2282, 885145), (2954, 683785), (4195, 481502), (5705, 354058), (5873, 343930), (7385, 273514), (8390, 240751), (11410, 177029), (11746, 171965), (14770, 136757), (29365, 68786), (34393, 58730)]