198916900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21859}}^1$

素因数の和:21893

約数の個数: 72

約数和(自身を含む): 531285440

約数和(自身を除く): 332368540

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 4550, 9100, 21859, 43718, 87436, 109295, 153013, 218590, 284167, 306026, 437180, 546475, 568334, 612052, 765065, 1092950, 1136668, 1420835, 1530130, 1989169, 2185900, 2841670, 3060260, 3825325, 3978338, 5683340, 7104175, 7650650, 7956676, 9945845, 14208350, 15301300, 19891690, 28416700, 39783380, 49729225, 99458450, 198916900]

約数ペア:

[(1, 198916900), (2, 99458450), (4, 49729225), (5, 39783380), (7, 28416700), (10, 19891690), (13, 15301300), (14, 14208350), (20, 9945845), (25, 7956676), (26, 7650650), (28, 7104175), (35, 5683340), (50, 3978338), (52, 3825325), (65, 3060260), (70, 2841670), (91, 2185900), (100, 1989169), (130, 1530130), (140, 1420835), (175, 1136668), (182, 1092950), (260, 765065), (325, 612052), (350, 568334), (364, 546475), (455, 437180), (650, 306026), (700, 284167), (910, 218590), (1300, 153013), (1820, 109295), (2275, 87436), (4550, 43718), (9100, 21859)]