128251520

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:290

約数の個数: 128

約数和(自身を含む): 330480000

約数和(自身を除く): 202228480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 53, 64, 76, 80, 95, 106, 128, 152, 160, 190, 199, 212, 265, 304, 320, 380, 398, 424, 530, 608, 640, 760, 796, 848, 995, 1007, 1060, 1216, 1520, 1592, 1696, 1990, 2014, 2120, 2432, 3040, 3184, 3392, 3781, 3980, 4028, 4240, 5035, 6080, 6368, 6784, 7562, 7960, 8056, 8480, 10070, 10547, 12160, 12736, 15124, 15920, 16112, 16960, 18905, 20140, 21094, 25472, 30248, 31840, 32224, 33920, 37810, 40280, 42188, 52735, 60496, 63680, 64448, 75620, 80560, 84376, 105470, 120992, 127360, 128896, 151240, 161120, 168752, 200393, 210940, 241984, 302480, 322240, 337504, 400786, 421880, 483968, 604960, 644480, 675008, 801572, 843760, 1001965, 1209920, 1350016, 1603144, 1687520, 2003930, 2419840, 3206288, 3375040, 4007860, 6412576, 6750080, 8015720, 12825152, 16031440, 25650304, 32062880, 64125760, 128251520]

約数ペア:

[(1, 128251520), (2, 64125760), (4, 32062880), (5, 25650304), (8, 16031440), (10, 12825152), (16, 8015720), (19, 6750080), (20, 6412576), (32, 4007860), (38, 3375040), (40, 3206288), (53, 2419840), (64, 2003930), (76, 1687520), (80, 1603144), (95, 1350016), (106, 1209920), (128, 1001965), (152, 843760), (160, 801572), (190, 675008), (199, 644480), (212, 604960), (265, 483968), (304, 421880), (320, 400786), (380, 337504), (398, 322240), (424, 302480), (530, 241984), (608, 210940), (640, 200393), (760, 168752), (796, 161120), (848, 151240), (995, 128896), (1007, 127360), (1060, 120992), (1216, 105470), (1520, 84376), (1592, 80560), (1696, 75620), (1990, 64448), (2014, 63680), (2120, 60496), (2432, 52735), (3040, 42188), (3184, 40280), (3392, 37810), (3781, 33920), (3980, 32224), (4028, 31840), (4240, 30248), (5035, 25472), (6080, 21094), (6368, 20140), (6784, 18905), (7562, 16960), (7960, 16112), (8056, 15920), (8480, 15124), (10070, 12736), (10547, 12160)]