20521740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{599}}^1$

素因数の和:1182

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 37135860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 571, 599, 1142, 1198, 1713, 1797, 2284, 2396, 2855, 2995, 3426, 3594, 5710, 5990, 6852, 7188, 8565, 8985, 11420, 11980, 17130, 17970, 34260, 35940, 342029, 684058, 1026087, 1368116, 1710145, 2052174, 3420290, 4104348, 5130435, 6840580, 10260870, 20521740]

約数ペア:

[(1, 20521740), (2, 10260870), (3, 6840580), (4, 5130435), (5, 4104348), (6, 3420290), (10, 2052174), (12, 1710145), (15, 1368116), (20, 1026087), (30, 684058), (60, 342029), (571, 35940), (599, 34260), (1142, 17970), (1198, 17130), (1713, 11980), (1797, 11420), (2284, 8985), (2396, 8565), (2855, 7188), (2995, 6852), (3426, 5990), (3594, 5710)]