129201280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{293}}^1$

素因数の和:378

約数の個数: 128

約数和(自身を含む): 340063920

約数和(自身を除く): 210862640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 80, 104, 106, 128, 130, 160, 208, 212, 260, 265, 293, 320, 416, 424, 520, 530, 586, 640, 689, 832, 848, 1040, 1060, 1172, 1378, 1465, 1664, 1696, 2080, 2120, 2344, 2756, 2930, 3392, 3445, 3809, 4160, 4240, 4688, 5512, 5860, 6784, 6890, 7618, 8320, 8480, 9376, 11024, 11720, 13780, 15236, 15529, 16960, 18752, 19045, 22048, 23440, 27560, 30472, 31058, 33920, 37504, 38090, 44096, 46880, 55120, 60944, 62116, 76180, 77645, 88192, 93760, 110240, 121888, 124232, 152360, 155290, 187520, 201877, 220480, 243776, 248464, 304720, 310580, 403754, 440960, 487552, 496928, 609440, 621160, 807508, 993856, 1009385, 1218880, 1242320, 1615016, 1987712, 2018770, 2437760, 2484640, 3230032, 4037540, 4969280, 6460064, 8075080, 9938560, 12920128, 16150160, 25840256, 32300320, 64600640, 129201280]

約数ペア:

[(1, 129201280), (2, 64600640), (4, 32300320), (5, 25840256), (8, 16150160), (10, 12920128), (13, 9938560), (16, 8075080), (20, 6460064), (26, 4969280), (32, 4037540), (40, 3230032), (52, 2484640), (53, 2437760), (64, 2018770), (65, 1987712), (80, 1615016), (104, 1242320), (106, 1218880), (128, 1009385), (130, 993856), (160, 807508), (208, 621160), (212, 609440), (260, 496928), (265, 487552), (293, 440960), (320, 403754), (416, 310580), (424, 304720), (520, 248464), (530, 243776), (586, 220480), (640, 201877), (689, 187520), (832, 155290), (848, 152360), (1040, 124232), (1060, 121888), (1172, 110240), (1378, 93760), (1465, 88192), (1664, 77645), (1696, 76180), (2080, 62116), (2120, 60944), (2344, 55120), (2756, 46880), (2930, 44096), (3392, 38090), (3445, 37504), (3809, 33920), (4160, 31058), (4240, 30472), (4688, 27560), (5512, 23440), (5860, 22048), (6784, 19045), (6890, 18752), (7618, 16960), (8320, 15529), (8480, 15236), (9376, 13780), (11024, 11720)]