720291780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307817}}^1$

素因数の和:307845

約数の個数: 72

約数和(自身を含む): 2352960792

約数和(自身を除く): 1632669012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 307817, 615634, 923451, 1231268, 1539085, 1846902, 2770353, 3078170, 3693804, 4001621, 4617255, 5540706, 6156340, 8003242, 9234510, 11081412, 12004863, 13851765, 16006484, 18469020, 20008105, 24009726, 27703530, 36014589, 40016210, 48019452, 55407060, 60024315, 72029178, 80032420, 120048630, 144058356, 180072945, 240097260, 360145890, 720291780]

約数ペア:

[(1, 720291780), (2, 360145890), (3, 240097260), (4, 180072945), (5, 144058356), (6, 120048630), (9, 80032420), (10, 72029178), (12, 60024315), (13, 55407060), (15, 48019452), (18, 40016210), (20, 36014589), (26, 27703530), (30, 24009726), (36, 20008105), (39, 18469020), (45, 16006484), (52, 13851765), (60, 12004863), (65, 11081412), (78, 9234510), (90, 8003242), (117, 6156340), (130, 5540706), (156, 4617255), (180, 4001621), (195, 3693804), (234, 3078170), (260, 2770353), (390, 1846902), (468, 1539085), (585, 1231268), (780, 923451), (1170, 615634), (2340, 307817)]