87121980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4889}}^1$

素因数の和:4921

約数の個数: 120

約数和(自身を含む): 298211760

約数和(自身を除く): 211089780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1188, 1485, 1620, 1782, 1980, 2970, 3564, 4455, 4889, 5940, 8910, 9778, 14667, 17820, 19556, 24445, 29334, 44001, 48890, 53779, 58668, 73335, 88002, 97780, 107558, 132003, 146670, 161337, 176004, 215116, 220005, 264006, 268895, 293340, 322674, 396009, 440010, 484011, 528012, 537790, 645348, 660015, 792018, 806685, 880020, 968022, 1075580, 1320030, 1452033, 1584036, 1613370, 1936044, 1980045, 2420055, 2640060, 2904066, 3226740, 3960090, 4356099, 4840110, 5808132, 7260165, 7920180, 8712198, 9680220, 14520330, 17424396, 21780495, 29040660, 43560990, 87121980]

約数ペア:

[(1, 87121980), (2, 43560990), (3, 29040660), (4, 21780495), (5, 17424396), (6, 14520330), (9, 9680220), (10, 8712198), (11, 7920180), (12, 7260165), (15, 5808132), (18, 4840110), (20, 4356099), (22, 3960090), (27, 3226740), (30, 2904066), (33, 2640060), (36, 2420055), (44, 1980045), (45, 1936044), (54, 1613370), (55, 1584036), (60, 1452033), (66, 1320030), (81, 1075580), (90, 968022), (99, 880020), (108, 806685), (110, 792018), (132, 660015), (135, 645348), (162, 537790), (165, 528012), (180, 484011), (198, 440010), (220, 396009), (270, 322674), (297, 293340), (324, 268895), (330, 264006), (396, 220005), (405, 215116), (495, 176004), (540, 161337), (594, 146670), (660, 132003), (810, 107558), (891, 97780), (990, 88002), (1188, 73335), (1485, 58668), (1620, 53779), (1782, 48890), (1980, 44001), (2970, 29334), (3564, 24445), (4455, 19556), (4889, 17820), (5940, 14667), (8910, 9778)]