320219820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{461}}^1$

素因数の和:720

約数の個数: 144

約数和(自身を含む): 1035242208

約数和(自身を除く): 715022388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 227, 255, 306, 340, 454, 461, 510, 612, 681, 765, 908, 922, 1020, 1135, 1362, 1383, 1530, 1844, 2043, 2270, 2305, 2724, 2766, 3060, 3405, 3859, 4086, 4149, 4540, 4610, 5532, 6810, 6915, 7718, 7837, 8172, 8298, 9220, 10215, 11577, 13620, 13830, 15436, 15674, 16596, 19295, 20430, 20745, 23154, 23511, 27660, 31348, 34731, 38590, 39185, 40860, 41490, 46308, 47022, 57885, 69462, 70533, 77180, 78370, 82980, 94044, 104647, 115770, 117555, 138924, 141066, 156740, 173655, 209294, 231540, 235110, 282132, 313941, 347310, 352665, 418588, 470220, 523235, 627882, 694620, 705330, 941823, 1046470, 1255764, 1410660, 1569705, 1778999, 1883646, 2092940, 3139410, 3557998, 3767292, 4709115, 5336997, 6278820, 7115996, 8894995, 9418230, 10673994, 16010991, 17789990, 18836460, 21347988, 26684985, 32021982, 35579980, 53369970, 64043964, 80054955, 106739940, 160109910, 320219820]

約数ペア:

[(1, 320219820), (2, 160109910), (3, 106739940), (4, 80054955), (5, 64043964), (6, 53369970), (9, 35579980), (10, 32021982), (12, 26684985), (15, 21347988), (17, 18836460), (18, 17789990), (20, 16010991), (30, 10673994), (34, 9418230), (36, 8894995), (45, 7115996), (51, 6278820), (60, 5336997), (68, 4709115), (85, 3767292), (90, 3557998), (102, 3139410), (153, 2092940), (170, 1883646), (180, 1778999), (204, 1569705), (227, 1410660), (255, 1255764), (306, 1046470), (340, 941823), (454, 705330), (461, 694620), (510, 627882), (612, 523235), (681, 470220), (765, 418588), (908, 352665), (922, 347310), (1020, 313941), (1135, 282132), (1362, 235110), (1383, 231540), (1530, 209294), (1844, 173655), (2043, 156740), (2270, 141066), (2305, 138924), (2724, 117555), (2766, 115770), (3060, 104647), (3405, 94044), (3859, 82980), (4086, 78370), (4149, 77180), (4540, 70533), (4610, 69462), (5532, 57885), (6810, 47022), (6915, 46308), (7718, 41490), (7837, 40860), (8172, 39185), (8298, 38590), (9220, 34731), (10215, 31348), (11577, 27660), (13620, 23511), (13830, 23154), (15436, 20745), (15674, 20430), (16596, 19295)]