128413600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{997}}^1$

素因数の和:1047

約数の個数: 144

約数和(自身を含む): 374226048

約数和(自身を除く): 245812448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 50, 56, 70, 80, 92, 100, 112, 115, 140, 160, 161, 175, 184, 200, 224, 230, 280, 322, 350, 368, 400, 460, 560, 575, 644, 700, 736, 800, 805, 920, 997, 1120, 1150, 1288, 1400, 1610, 1840, 1994, 2300, 2576, 2800, 3220, 3680, 3988, 4025, 4600, 4985, 5152, 5600, 6440, 6979, 7976, 8050, 9200, 9970, 12880, 13958, 15952, 16100, 18400, 19940, 22931, 24925, 25760, 27916, 31904, 32200, 34895, 39880, 45862, 49850, 55832, 64400, 69790, 79760, 91724, 99700, 111664, 114655, 128800, 139580, 159520, 160517, 174475, 183448, 199400, 223328, 229310, 279160, 321034, 348950, 366896, 398800, 458620, 558320, 573275, 642068, 697900, 733792, 797600, 802585, 917240, 1116640, 1146550, 1284136, 1395800, 1605170, 1834480, 2293100, 2568272, 2791600, 3210340, 3668960, 4012925, 4586200, 5136544, 5583200, 6420680, 8025850, 9172400, 12841360, 16051700, 18344800, 25682720, 32103400, 64206800, 128413600]

約数ペア:

[(1, 128413600), (2, 64206800), (4, 32103400), (5, 25682720), (7, 18344800), (8, 16051700), (10, 12841360), (14, 9172400), (16, 8025850), (20, 6420680), (23, 5583200), (25, 5136544), (28, 4586200), (32, 4012925), (35, 3668960), (40, 3210340), (46, 2791600), (50, 2568272), (56, 2293100), (70, 1834480), (80, 1605170), (92, 1395800), (100, 1284136), (112, 1146550), (115, 1116640), (140, 917240), (160, 802585), (161, 797600), (175, 733792), (184, 697900), (200, 642068), (224, 573275), (230, 558320), (280, 458620), (322, 398800), (350, 366896), (368, 348950), (400, 321034), (460, 279160), (560, 229310), (575, 223328), (644, 199400), (700, 183448), (736, 174475), (800, 160517), (805, 159520), (920, 139580), (997, 128800), (1120, 114655), (1150, 111664), (1288, 99700), (1400, 91724), (1610, 79760), (1840, 69790), (1994, 64400), (2300, 55832), (2576, 49850), (2800, 45862), (3220, 39880), (3680, 34895), (3988, 32200), (4025, 31904), (4600, 27916), (4985, 25760), (5152, 24925), (5600, 22931), (6440, 19940), (6979, 18400), (7976, 16100), (8050, 15952), (9200, 13958), (9970, 12880)]