212144520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:468

約数の個数: 192

約数和(自身を含む): 749390400

約数和(自身を除く): 537245880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 109, 120, 140, 147, 168, 196, 210, 218, 245, 280, 294, 327, 331, 392, 420, 436, 490, 545, 588, 654, 662, 735, 763, 840, 872, 980, 993, 1090, 1176, 1308, 1324, 1470, 1526, 1635, 1655, 1960, 1986, 2180, 2289, 2317, 2616, 2648, 2940, 3052, 3270, 3310, 3815, 3972, 4360, 4578, 4634, 4965, 5341, 5880, 6104, 6540, 6620, 6951, 7630, 7944, 9156, 9268, 9930, 10682, 11445, 11585, 13080, 13240, 13902, 15260, 16023, 16219, 18312, 18536, 19860, 21364, 22890, 23170, 26705, 27804, 30520, 32046, 32438, 34755, 36079, 39720, 42728, 45780, 46340, 48657, 53410, 55608, 64092, 64876, 69510, 72158, 80115, 81095, 91560, 92680, 97314, 106820, 108237, 128184, 129752, 139020, 144316, 160230, 162190, 180395, 194628, 213640, 216474, 243285, 252553, 278040, 288632, 320460, 324380, 360790, 389256, 432948, 486570, 505106, 541185, 640920, 648760, 721580, 757659, 865896, 973140, 1010212, 1082370, 1262765, 1443160, 1515318, 1767871, 1946280, 2020424, 2164740, 2525530, 3030636, 3535742, 3788295, 4329480, 5051060, 5303613, 6061272, 7071484, 7576590, 8839355, 10102120, 10607226, 14142968, 15153180, 17678710, 21214452, 26518065, 30306360, 35357420, 42428904, 53036130, 70714840, 106072260, 212144520]

約数ペア:

[(1, 212144520), (2, 106072260), (3, 70714840), (4, 53036130), (5, 42428904), (6, 35357420), (7, 30306360), (8, 26518065), (10, 21214452), (12, 17678710), (14, 15153180), (15, 14142968), (20, 10607226), (21, 10102120), (24, 8839355), (28, 7576590), (30, 7071484), (35, 6061272), (40, 5303613), (42, 5051060), (49, 4329480), (56, 3788295), (60, 3535742), (70, 3030636), (84, 2525530), (98, 2164740), (105, 2020424), (109, 1946280), (120, 1767871), (140, 1515318), (147, 1443160), (168, 1262765), (196, 1082370), (210, 1010212), (218, 973140), (245, 865896), (280, 757659), (294, 721580), (327, 648760), (331, 640920), (392, 541185), (420, 505106), (436, 486570), (490, 432948), (545, 389256), (588, 360790), (654, 324380), (662, 320460), (735, 288632), (763, 278040), (840, 252553), (872, 243285), (980, 216474), (993, 213640), (1090, 194628), (1176, 180395), (1308, 162190), (1324, 160230), (1470, 144316), (1526, 139020), (1635, 129752), (1655, 128184), (1960, 108237), (1986, 106820), (2180, 97314), (2289, 92680), (2317, 91560), (2616, 81095), (2648, 80115), (2940, 72158), (3052, 69510), (3270, 64876), (3310, 64092), (3815, 55608), (3972, 53410), (4360, 48657), (4578, 46340), (4634, 45780), (4965, 42728), (5341, 39720), (5880, 36079), (6104, 34755), (6540, 32438), (6620, 32046), (6951, 30520), (7630, 27804), (7944, 26705), (9156, 23170), (9268, 22890), (9930, 21364), (10682, 19860), (11445, 18536), (11585, 18312), (13080, 16219), (13240, 16023), (13902, 15260)]