238479280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:639

約数の個数: 120

約数和(自身を含む): 620853120

約数和(自身を除く): 382373840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 169, 208, 248, 260, 310, 338, 403, 496, 520, 569, 620, 676, 806, 845, 1040, 1138, 1240, 1352, 1612, 1690, 2015, 2276, 2480, 2704, 2845, 3224, 3380, 4030, 4552, 5239, 5690, 6448, 6760, 7397, 8060, 9104, 10478, 11380, 13520, 14794, 16120, 17639, 20956, 22760, 26195, 29588, 32240, 35278, 36985, 41912, 45520, 52390, 59176, 70556, 73970, 83824, 88195, 96161, 104780, 118352, 141112, 147940, 176390, 192322, 209560, 229307, 282224, 295880, 352780, 384644, 419120, 458614, 480805, 591760, 705560, 769288, 917228, 961610, 1146535, 1411120, 1538576, 1834456, 1923220, 2293070, 2980991, 3668912, 3846440, 4586140, 5961982, 7692880, 9172280, 11923964, 14904955, 18344560, 23847928, 29809910, 47695856, 59619820, 119239640, 238479280]

約数ペア:

[(1, 238479280), (2, 119239640), (4, 59619820), (5, 47695856), (8, 29809910), (10, 23847928), (13, 18344560), (16, 14904955), (20, 11923964), (26, 9172280), (31, 7692880), (40, 5961982), (52, 4586140), (62, 3846440), (65, 3668912), (80, 2980991), (104, 2293070), (124, 1923220), (130, 1834456), (155, 1538576), (169, 1411120), (208, 1146535), (248, 961610), (260, 917228), (310, 769288), (338, 705560), (403, 591760), (496, 480805), (520, 458614), (569, 419120), (620, 384644), (676, 352780), (806, 295880), (845, 282224), (1040, 229307), (1138, 209560), (1240, 192322), (1352, 176390), (1612, 147940), (1690, 141112), (2015, 118352), (2276, 104780), (2480, 96161), (2704, 88195), (2845, 83824), (3224, 73970), (3380, 70556), (4030, 59176), (4552, 52390), (5239, 45520), (5690, 41912), (6448, 36985), (6760, 35278), (7397, 32240), (8060, 29588), (9104, 26195), (10478, 22760), (11380, 20956), (13520, 17639), (14794, 16120)]