20172019400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{49417}}^1$

素因数の和:49603

約数の個数: 96

約数和(自身を含む): 50830366440

約数和(自身を除く): 30658347040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 157, 200, 260, 314, 325, 520, 628, 650, 785, 1256, 1300, 1570, 2041, 2600, 3140, 3925, 4082, 6280, 7850, 8164, 10205, 15700, 16328, 20410, 31400, 40820, 49417, 51025, 81640, 98834, 102050, 197668, 204100, 247085, 395336, 408200, 494170, 642421, 988340, 1235425, 1284842, 1976680, 2470850, 2569684, 3212105, 4941700, 5139368, 6424210, 7758469, 9883400, 12848420, 15516938, 16060525, 25696840, 31033876, 32121050, 38792345, 62067752, 64242100, 77584690, 100860097, 128484200, 155169380, 193961725, 201720194, 310338760, 387923450, 403440388, 504300485, 775846900, 806880776, 1008600970, 1551693800, 2017201940, 2521502425, 4034403880, 5043004850, 10086009700, 20172019400]

約数ペア:

[(1, 20172019400), (2, 10086009700), (4, 5043004850), (5, 4034403880), (8, 2521502425), (10, 2017201940), (13, 1551693800), (20, 1008600970), (25, 806880776), (26, 775846900), (40, 504300485), (50, 403440388), (52, 387923450), (65, 310338760), (100, 201720194), (104, 193961725), (130, 155169380), (157, 128484200), (200, 100860097), (260, 77584690), (314, 64242100), (325, 62067752), (520, 38792345), (628, 32121050), (650, 31033876), (785, 25696840), (1256, 16060525), (1300, 15516938), (1570, 12848420), (2041, 9883400), (2600, 7758469), (3140, 6424210), (3925, 5139368), (4082, 4941700), (6280, 3212105), (7850, 2569684), (8164, 2470850), (10205, 1976680), (15700, 1284842), (16328, 1235425), (20410, 988340), (31400, 642421), (40820, 494170), (49417, 408200), (51025, 395336), (81640, 247085), (98834, 204100), (102050, 197668)]