21830640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6997}}^1$

素因数の和:7026

約数の個数: 80

約数和(自身を含む): 72891168

約数和(自身を除く): 51060528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6997, 13994, 20991, 27988, 34985, 41982, 55976, 69970, 83964, 90961, 104955, 111952, 139940, 167928, 181922, 209910, 272883, 279880, 335856, 363844, 419820, 454805, 545766, 559760, 727688, 839640, 909610, 1091532, 1364415, 1455376, 1679280, 1819220, 2183064, 2728830, 3638440, 4366128, 5457660, 7276880, 10915320, 21830640]

約数ペア:

[(1, 21830640), (2, 10915320), (3, 7276880), (4, 5457660), (5, 4366128), (6, 3638440), (8, 2728830), (10, 2183064), (12, 1819220), (13, 1679280), (15, 1455376), (16, 1364415), (20, 1091532), (24, 909610), (26, 839640), (30, 727688), (39, 559760), (40, 545766), (48, 454805), (52, 419820), (60, 363844), (65, 335856), (78, 279880), (80, 272883), (104, 209910), (120, 181922), (130, 167928), (156, 139940), (195, 111952), (208, 104955), (240, 90961), (260, 83964), (312, 69970), (390, 55976), (520, 41982), (624, 34985), (780, 27988), (1040, 20991), (1560, 13994), (3120, 6997)]