561958880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1999}}^1$

素因数の和:2272

約数の個数: 96

約数和(自身を含む): 1524096000

約数和(自身を除く): 962137120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 251, 280, 502, 560, 1004, 1120, 1255, 1757, 1999, 2008, 2510, 3514, 3998, 4016, 5020, 7028, 7996, 8032, 8785, 9995, 10040, 13993, 14056, 15992, 17570, 19990, 20080, 27986, 28112, 31984, 35140, 39980, 40160, 55972, 56224, 63968, 69965, 70280, 79960, 111944, 139930, 140560, 159920, 223888, 279860, 281120, 319840, 447776, 501749, 559720, 1003498, 1119440, 2006996, 2238880, 2508745, 3512243, 4013992, 5017490, 7024486, 8027984, 10034980, 14048972, 16055968, 17561215, 20069960, 28097944, 35122430, 40139920, 56195888, 70244860, 80279840, 112391776, 140489720, 280979440, 561958880]

約数ペア:

[(1, 561958880), (2, 280979440), (4, 140489720), (5, 112391776), (7, 80279840), (8, 70244860), (10, 56195888), (14, 40139920), (16, 35122430), (20, 28097944), (28, 20069960), (32, 17561215), (35, 16055968), (40, 14048972), (56, 10034980), (70, 8027984), (80, 7024486), (112, 5017490), (140, 4013992), (160, 3512243), (224, 2508745), (251, 2238880), (280, 2006996), (502, 1119440), (560, 1003498), (1004, 559720), (1120, 501749), (1255, 447776), (1757, 319840), (1999, 281120), (2008, 279860), (2510, 223888), (3514, 159920), (3998, 140560), (4016, 139930), (5020, 111944), (7028, 79960), (7996, 70280), (8032, 69965), (8785, 63968), (9995, 56224), (10040, 55972), (13993, 40160), (14056, 39980), (15992, 35140), (17570, 31984), (19990, 28112), (20080, 27986)]