31405140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13421}}^1$

素因数の和:13449

約数の個数: 72

約数和(自身を含む): 102597768

約数和(自身を除く): 71192628

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, 13421, 26842, 40263, 53684, 67105, 80526, 120789, 134210, 161052, 174473, 201315, 241578, 268420, 348946, 402630, 483156, 523419, 603945, 697892, 805260, 872365, 1046838, 1207890, 1570257, 1744730, 2093676, 2415780, 2617095, 3140514, 3489460, 5234190, 6281028, 7851285, 10468380, 15702570, 31405140]

約数ペア:

[(1, 31405140), (2, 15702570), (3, 10468380), (4, 7851285), (5, 6281028), (6, 5234190), (9, 3489460), (10, 3140514), (12, 2617095), (13, 2415780), (15, 2093676), (18, 1744730), (20, 1570257), (26, 1207890), (30, 1046838), (36, 872365), (39, 805260), (45, 697892), (52, 603945), (60, 523419), (65, 483156), (78, 402630), (90, 348946), (117, 268420), (130, 241578), (156, 201315), (180, 174473), (195, 161052), (234, 134210), (260, 120789), (390, 80526), (468, 67105), (585, 53684), (780, 40263), (1170, 26842), (2340, 13421)]