79919640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{221999}}^1$

素因数の和:222016

約数の個数: 48

約数和(自身を含む): 259740000

約数和(自身を除く): 179820360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 221999, 443998, 665997, 887996, 1109995, 1331994, 1775992, 1997991, 2219990, 2663988, 3329985, 3995982, 4439980, 5327976, 6659970, 7991964, 8879960, 9989955, 13319940, 15983928, 19979910, 26639880, 39959820, 79919640]

約数ペア:

[(1, 79919640), (2, 39959820), (3, 26639880), (4, 19979910), (5, 15983928), (6, 13319940), (8, 9989955), (9, 8879960), (10, 7991964), (12, 6659970), (15, 5327976), (18, 4439980), (20, 3995982), (24, 3329985), (30, 2663988), (36, 2219990), (40, 1997991), (45, 1775992), (60, 1331994), (72, 1109995), (90, 887996), (120, 665997), (180, 443998), (360, 221999)]