12781280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:196

約数の個数: 96

約数和(自身を含む): 33094656

約数和(自身を除く): 20313376

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 68, 74, 80, 85, 127, 136, 148, 160, 170, 185, 254, 272, 296, 340, 370, 508, 544, 592, 629, 635, 680, 740, 1016, 1184, 1258, 1270, 1360, 1480, 2032, 2159, 2516, 2540, 2720, 2960, 3145, 4064, 4318, 4699, 5032, 5080, 5920, 6290, 8636, 9398, 10064, 10160, 10795, 12580, 17272, 18796, 20128, 20320, 21590, 23495, 25160, 34544, 37592, 43180, 46990, 50320, 69088, 75184, 79883, 86360, 93980, 100640, 150368, 159766, 172720, 187960, 319532, 345440, 375920, 399415, 639064, 751840, 798830, 1278128, 1597660, 2556256, 3195320, 6390640, 12781280]

約数ペア:

[(1, 12781280), (2, 6390640), (4, 3195320), (5, 2556256), (8, 1597660), (10, 1278128), (16, 798830), (17, 751840), (20, 639064), (32, 399415), (34, 375920), (37, 345440), (40, 319532), (68, 187960), (74, 172720), (80, 159766), (85, 150368), (127, 100640), (136, 93980), (148, 86360), (160, 79883), (170, 75184), (185, 69088), (254, 50320), (272, 46990), (296, 43180), (340, 37592), (370, 34544), (508, 25160), (544, 23495), (592, 21590), (629, 20320), (635, 20128), (680, 18796), (740, 17272), (1016, 12580), (1184, 10795), (1258, 10160), (1270, 10064), (1360, 9398), (1480, 8636), (2032, 6290), (2159, 5920), (2516, 5080), (2540, 5032), (2720, 4699), (2960, 4318), (3145, 4064)]