28740100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 65773568

約数和(自身を除く): 37033468

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 73, 100, 124, 127, 146, 155, 254, 292, 310, 365, 508, 620, 635, 730, 775, 1270, 1460, 1550, 1825, 2263, 2540, 3100, 3175, 3650, 3937, 4526, 6350, 7300, 7874, 9052, 9271, 11315, 12700, 15748, 18542, 19685, 22630, 37084, 39370, 45260, 46355, 56575, 78740, 92710, 98425, 113150, 185420, 196850, 226300, 231775, 287401, 393700, 463550, 574802, 927100, 1149604, 1437005, 2874010, 5748020, 7185025, 14370050, 28740100]

約数ペア:

[(1, 28740100), (2, 14370050), (4, 7185025), (5, 5748020), (10, 2874010), (20, 1437005), (25, 1149604), (31, 927100), (50, 574802), (62, 463550), (73, 393700), (100, 287401), (124, 231775), (127, 226300), (146, 196850), (155, 185420), (254, 113150), (292, 98425), (310, 92710), (365, 78740), (508, 56575), (620, 46355), (635, 45260), (730, 39370), (775, 37084), (1270, 22630), (1460, 19685), (1550, 18542), (1825, 15748), (2263, 12700), (2540, 11315), (3100, 9271), (3175, 9052), (3650, 7874), (3937, 7300), (4526, 6350)]