1987221960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{27739}}^1$

素因数の和:27955

約数の個数: 96

約数和(自身を含む): 6491160000

約数和(自身を除く): 4503938040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 199, 360, 398, 597, 796, 995, 1194, 1592, 1791, 1990, 2388, 2985, 3582, 3980, 4776, 5970, 7164, 7960, 8955, 11940, 14328, 17910, 23880, 27739, 35820, 55478, 71640, 83217, 110956, 138695, 166434, 221912, 249651, 277390, 332868, 416085, 499302, 554780, 665736, 832170, 998604, 1109560, 1248255, 1664340, 1997208, 2496510, 3328680, 4993020, 5520061, 9986040, 11040122, 16560183, 22080244, 27600305, 33120366, 44160488, 49680549, 55200610, 66240732, 82800915, 99361098, 110401220, 132481464, 165601830, 198722196, 220802440, 248402745, 331203660, 397444392, 496805490, 662407320, 993610980, 1987221960]

約数ペア:

[(1, 1987221960), (2, 993610980), (3, 662407320), (4, 496805490), (5, 397444392), (6, 331203660), (8, 248402745), (9, 220802440), (10, 198722196), (12, 165601830), (15, 132481464), (18, 110401220), (20, 99361098), (24, 82800915), (30, 66240732), (36, 55200610), (40, 49680549), (45, 44160488), (60, 33120366), (72, 27600305), (90, 22080244), (120, 16560183), (180, 11040122), (199, 9986040), (360, 5520061), (398, 4993020), (597, 3328680), (796, 2496510), (995, 1997208), (1194, 1664340), (1592, 1248255), (1791, 1109560), (1990, 998604), (2388, 832170), (2985, 665736), (3582, 554780), (3980, 499302), (4776, 416085), (5970, 332868), (7164, 277390), (7960, 249651), (8955, 221912), (11940, 166434), (14328, 138695), (17910, 110956), (23880, 83217), (27739, 71640), (35820, 55478)]