128709040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:359

約数の個数: 120

約数和(自身を含む): 335759760

約数和(自身を除く): 207050720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 289, 293, 304, 323, 340, 380, 578, 586, 646, 680, 760, 1156, 1172, 1292, 1360, 1445, 1465, 1520, 1615, 2312, 2344, 2584, 2890, 2930, 3230, 4624, 4688, 4981, 5168, 5491, 5567, 5780, 5860, 6460, 9962, 10982, 11134, 11560, 11720, 12920, 19924, 21964, 22268, 23120, 23440, 24905, 25840, 27455, 27835, 39848, 43928, 44536, 49810, 54910, 55670, 79696, 84677, 87856, 89072, 94639, 99620, 109820, 111340, 169354, 189278, 199240, 219640, 222680, 338708, 378556, 398480, 423385, 439280, 445360, 473195, 677416, 757112, 846770, 946390, 1354832, 1514224, 1608863, 1693540, 1892780, 3217726, 3387080, 3785560, 6435452, 6774160, 7571120, 8044315, 12870904, 16088630, 25741808, 32177260, 64354520, 128709040]

約数ペア:

[(1, 128709040), (2, 64354520), (4, 32177260), (5, 25741808), (8, 16088630), (10, 12870904), (16, 8044315), (17, 7571120), (19, 6774160), (20, 6435452), (34, 3785560), (38, 3387080), (40, 3217726), (68, 1892780), (76, 1693540), (80, 1608863), (85, 1514224), (95, 1354832), (136, 946390), (152, 846770), (170, 757112), (190, 677416), (272, 473195), (289, 445360), (293, 439280), (304, 423385), (323, 398480), (340, 378556), (380, 338708), (578, 222680), (586, 219640), (646, 199240), (680, 189278), (760, 169354), (1156, 111340), (1172, 109820), (1292, 99620), (1360, 94639), (1445, 89072), (1465, 87856), (1520, 84677), (1615, 79696), (2312, 55670), (2344, 54910), (2584, 49810), (2890, 44536), (2930, 43928), (3230, 39848), (4624, 27835), (4688, 27455), (4981, 25840), (5168, 24905), (5491, 23440), (5567, 23120), (5780, 22268), (5860, 21964), (6460, 19924), (9962, 12920), (10982, 11720), (11134, 11560)]