42168420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{683}}^1$

素因数の和:719

約数の個数: 144

約数和(自身を含む): 149385600

約数和(自身を除く): 107217180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 490, 588, 630, 683, 686, 735, 882, 980, 1029, 1260, 1366, 1372, 1470, 1715, 1764, 2049, 2058, 2205, 2732, 2940, 3087, 3415, 3430, 4098, 4116, 4410, 4781, 5145, 6147, 6174, 6830, 6860, 8196, 8820, 9562, 10245, 10290, 12294, 12348, 13660, 14343, 15435, 19124, 20490, 20580, 23905, 24588, 28686, 30735, 30870, 33467, 40980, 43029, 47810, 57372, 61470, 61740, 66934, 71715, 86058, 95620, 100401, 122940, 133868, 143430, 167335, 172116, 200802, 215145, 234269, 286860, 301203, 334670, 401604, 430290, 468538, 502005, 602406, 669340, 702807, 860580, 937076, 1004010, 1171345, 1204812, 1405614, 1506015, 2008020, 2108421, 2342690, 2811228, 3012030, 3514035, 4216842, 4685380, 6024060, 7028070, 8433684, 10542105, 14056140, 21084210, 42168420]

約数ペア:

[(1, 42168420), (2, 21084210), (3, 14056140), (4, 10542105), (5, 8433684), (6, 7028070), (7, 6024060), (9, 4685380), (10, 4216842), (12, 3514035), (14, 3012030), (15, 2811228), (18, 2342690), (20, 2108421), (21, 2008020), (28, 1506015), (30, 1405614), (35, 1204812), (36, 1171345), (42, 1004010), (45, 937076), (49, 860580), (60, 702807), (63, 669340), (70, 602406), (84, 502005), (90, 468538), (98, 430290), (105, 401604), (126, 334670), (140, 301203), (147, 286860), (180, 234269), (196, 215145), (210, 200802), (245, 172116), (252, 167335), (294, 143430), (315, 133868), (343, 122940), (420, 100401), (441, 95620), (490, 86058), (588, 71715), (630, 66934), (683, 61740), (686, 61470), (735, 57372), (882, 47810), (980, 43029), (1029, 40980), (1260, 33467), (1366, 30870), (1372, 30735), (1470, 28686), (1715, 24588), (1764, 23905), (2049, 20580), (2058, 20490), (2205, 19124), (2732, 15435), (2940, 14343), (3087, 13660), (3415, 12348), (3430, 12294), (4098, 10290), (4116, 10245), (4410, 9562), (4781, 8820), (5145, 8196), (6147, 6860), (6174, 6830)]