1218685140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{51683}}^1$

素因数の和:51829

約数の個数: 72

約数和(自身を含む): 3724969248

約数和(自身を除く): 2506284108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 3930, 4716, 5895, 7860, 11790, 23580, 51683, 103366, 155049, 206732, 258415, 310098, 465147, 516830, 620196, 775245, 930294, 1033660, 1550490, 1860588, 2325735, 3100980, 4651470, 6770473, 9302940, 13540946, 20311419, 27081892, 33852365, 40622838, 60934257, 67704730, 81245676, 101557095, 121868514, 135409460, 203114190, 243737028, 304671285, 406228380, 609342570, 1218685140]

約数ペア:

[(1, 1218685140), (2, 609342570), (3, 406228380), (4, 304671285), (5, 243737028), (6, 203114190), (9, 135409460), (10, 121868514), (12, 101557095), (15, 81245676), (18, 67704730), (20, 60934257), (30, 40622838), (36, 33852365), (45, 27081892), (60, 20311419), (90, 13540946), (131, 9302940), (180, 6770473), (262, 4651470), (393, 3100980), (524, 2325735), (655, 1860588), (786, 1550490), (1179, 1033660), (1310, 930294), (1572, 775245), (1965, 620196), (2358, 516830), (2620, 465147), (3930, 310098), (4716, 258415), (5895, 206732), (7860, 155049), (11790, 103366), (23580, 51683)]