54439980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{18517}}^1$

素因数の和:18543

約数の個数: 72

約数和(自身を含む): 177328368

約数和(自身を除く): 122888388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 18517, 37034, 55551, 74068, 92585, 111102, 129619, 185170, 222204, 259238, 277755, 370340, 388857, 518476, 555510, 648095, 777714, 907333, 1111020, 1296190, 1555428, 1814666, 1944285, 2592380, 2721999, 3629332, 3888570, 4536665, 5443998, 7777140, 9073330, 10887996, 13609995, 18146660, 27219990, 54439980]

約数ペア:

[(1, 54439980), (2, 27219990), (3, 18146660), (4, 13609995), (5, 10887996), (6, 9073330), (7, 7777140), (10, 5443998), (12, 4536665), (14, 3888570), (15, 3629332), (20, 2721999), (21, 2592380), (28, 1944285), (30, 1814666), (35, 1555428), (42, 1296190), (49, 1111020), (60, 907333), (70, 777714), (84, 648095), (98, 555510), (105, 518476), (140, 388857), (147, 370340), (196, 277755), (210, 259238), (245, 222204), (294, 185170), (420, 129619), (490, 111102), (588, 92585), (735, 74068), (980, 55551), (1470, 37034), (2940, 18517)]