217281760

素因数分解:

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

素因数の和:213

約数の個数: 144

約数和(自身を含む): 564447744

約数和(自身を除く): 347165984

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, 289, 296, 340, 370, 508, 544, 578, 592, 629, 635, 680, 740, 1016, 1156, 1184, 1258, 1270, 1360, 1445, 1480, 2032, 2159, 2312, 2516, 2540, 2720, 2890, 2960, 3145, 4064, 4318, 4624, 4699, 5032, 5080, 5780, 5920, 6290, 8636, 9248, 9398, 10064, 10160, 10693, 10795, 11560, 12580, 17272, 18796, 20128, 20320, 21386, 21590, 23120, 23495, 25160, 34544, 36703, 37592, 42772, 43180, 46240, 46990, 50320, 53465, 69088, 73406, 75184, 79883, 85544, 86360, 93980, 100640, 106930, 146812, 150368, 159766, 171088, 172720, 183515, 187960, 213860, 293624, 319532, 342176, 345440, 367030, 375920, 399415, 427720, 587248, 639064, 734060, 751840, 798830, 855440, 1174496, 1278128, 1358011, 1468120, 1597660, 1710880, 2556256, 2716022, 2936240, 3195320, 5432044, 5872480, 6390640, 6790055, 10864088, 12781280, 13580110, 21728176, 27160220, 43456352, 54320440, 108640880, 217281760]

約数ペア:

[(1, 217281760), (2, 108640880), (4, 54320440), (5, 43456352), (8, 27160220), (10, 21728176), (16, 13580110), (17, 12781280), (20, 10864088), (32, 6790055), (34, 6390640), (37, 5872480), (40, 5432044), (68, 3195320), (74, 2936240), (80, 2716022), (85, 2556256), (127, 1710880), (136, 1597660), (148, 1468120), (160, 1358011), (170, 1278128), (185, 1174496), (254, 855440), (272, 798830), (289, 751840), (296, 734060), (340, 639064), (370, 587248), (508, 427720), (544, 399415), (578, 375920), (592, 367030), (629, 345440), (635, 342176), (680, 319532), (740, 293624), (1016, 213860), (1156, 187960), (1184, 183515), (1258, 172720), (1270, 171088), (1360, 159766), (1445, 150368), (1480, 146812), (2032, 106930), (2159, 100640), (2312, 93980), (2516, 86360), (2540, 85544), (2720, 79883), (2890, 75184), (2960, 73406), (3145, 69088), (4064, 53465), (4318, 50320), (4624, 46990), (4699, 46240), (5032, 43180), (5080, 42772), (5780, 37592), (5920, 36703), (6290, 34544), (8636, 25160), (9248, 23495), (9398, 23120), (10064, 21590), (10160, 21386), (10693, 20320), (10795, 20128), (11560, 18796), (12580, 17272)]