39679540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 90636840

約数和(自身を除く): 50957300

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 43, 58, 74, 86, 116, 145, 148, 172, 185, 215, 290, 370, 430, 580, 740, 860, 1073, 1247, 1591, 1849, 2146, 2494, 3182, 3698, 4292, 4988, 5365, 6235, 6364, 7396, 7955, 9245, 10730, 12470, 15910, 18490, 21460, 24940, 31820, 36980, 46139, 53621, 68413, 92278, 107242, 136826, 184556, 214484, 230695, 268105, 273652, 342065, 461390, 536210, 684130, 922780, 1072420, 1368260, 1983977, 3967954, 7935908, 9919885, 19839770, 39679540]

約数ペア:

[(1, 39679540), (2, 19839770), (4, 9919885), (5, 7935908), (10, 3967954), (20, 1983977), (29, 1368260), (37, 1072420), (43, 922780), (58, 684130), (74, 536210), (86, 461390), (116, 342065), (145, 273652), (148, 268105), (172, 230695), (185, 214484), (215, 184556), (290, 136826), (370, 107242), (430, 92278), (580, 68413), (740, 53621), (860, 46139), (1073, 36980), (1247, 31820), (1591, 24940), (1849, 21460), (2146, 18490), (2494, 15910), (3182, 12470), (3698, 10730), (4292, 9245), (4988, 7955), (5365, 7396), (6235, 6364)]