28080831780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{652739}}^1$

素因数の和:652993

約数の個数: 72

約数和(自身を含む): 85535049600

約数和(自身を除く): 57454217820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 956, 1195, 1434, 2151, 2390, 2868, 3585, 4302, 4780, 7170, 8604, 10755, 14340, 21510, 43020, 652739, 1305478, 1958217, 2610956, 3263695, 3916434, 5874651, 6527390, 7832868, 9791085, 11749302, 13054780, 19582170, 23498604, 29373255, 39164340, 58746510, 117493020, 156004621, 312009242, 468013863, 624018484, 780023105, 936027726, 1404041589, 1560046210, 1872055452, 2340069315, 2808083178, 3120092420, 4680138630, 5616166356, 7020207945, 9360277260, 14040415890, 28080831780]

約数ペア:

[(1, 28080831780), (2, 14040415890), (3, 9360277260), (4, 7020207945), (5, 5616166356), (6, 4680138630), (9, 3120092420), (10, 2808083178), (12, 2340069315), (15, 1872055452), (18, 1560046210), (20, 1404041589), (30, 936027726), (36, 780023105), (45, 624018484), (60, 468013863), (90, 312009242), (180, 156004621), (239, 117493020), (478, 58746510), (717, 39164340), (956, 29373255), (1195, 23498604), (1434, 19582170), (2151, 13054780), (2390, 11749302), (2868, 9791085), (3585, 7832868), (4302, 6527390), (4780, 5874651), (7170, 3916434), (8604, 3263695), (10755, 2610956), (14340, 1958217), (21510, 1305478), (43020, 652739)]