2019945980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{21169}}^1$

素因数の和:21558

約数の個数: 48

約数和(自身を含む): 4580849280

約数和(自身を除く): 2560903300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 367, 734, 1468, 1835, 3670, 4771, 7340, 9542, 19084, 21169, 23855, 42338, 47710, 84676, 95420, 105845, 211690, 275197, 423380, 550394, 1100788, 1375985, 2751970, 5503940, 7769023, 15538046, 31076092, 38845115, 77690230, 100997299, 155380460, 201994598, 403989196, 504986495, 1009972990, 2019945980]

約数ペア:

[(1, 2019945980), (2, 1009972990), (4, 504986495), (5, 403989196), (10, 201994598), (13, 155380460), (20, 100997299), (26, 77690230), (52, 38845115), (65, 31076092), (130, 15538046), (260, 7769023), (367, 5503940), (734, 2751970), (1468, 1375985), (1835, 1100788), (3670, 550394), (4771, 423380), (7340, 275197), (9542, 211690), (19084, 105845), (21169, 95420), (23855, 84676), (42338, 47710)]