12768420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 42977088

約数和(自身を除く): 30208668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 101, 105, 129, 140, 147, 172, 196, 202, 210, 215, 245, 258, 294, 301, 303, 404, 420, 430, 490, 505, 516, 588, 602, 606, 645, 707, 735, 860, 903, 980, 1010, 1204, 1212, 1290, 1414, 1470, 1505, 1515, 1806, 2020, 2107, 2121, 2580, 2828, 2940, 3010, 3030, 3535, 3612, 4214, 4242, 4343, 4515, 4949, 6020, 6060, 6321, 7070, 8428, 8484, 8686, 9030, 9898, 10535, 10605, 12642, 13029, 14140, 14847, 17372, 18060, 19796, 21070, 21210, 21715, 24745, 25284, 26058, 29694, 30401, 31605, 42140, 42420, 43430, 49490, 52116, 59388, 60802, 63210, 65145, 74235, 86860, 91203, 98980, 121604, 126420, 130290, 148470, 152005, 182406, 212807, 260580, 296940, 304010, 364812, 425614, 456015, 608020, 638421, 851228, 912030, 1064035, 1276842, 1824060, 2128070, 2553684, 3192105, 4256140, 6384210, 12768420]

約数ペア:

[(1, 12768420), (2, 6384210), (3, 4256140), (4, 3192105), (5, 2553684), (6, 2128070), (7, 1824060), (10, 1276842), (12, 1064035), (14, 912030), (15, 851228), (20, 638421), (21, 608020), (28, 456015), (30, 425614), (35, 364812), (42, 304010), (43, 296940), (49, 260580), (60, 212807), (70, 182406), (84, 152005), (86, 148470), (98, 130290), (101, 126420), (105, 121604), (129, 98980), (140, 91203), (147, 86860), (172, 74235), (196, 65145), (202, 63210), (210, 60802), (215, 59388), (245, 52116), (258, 49490), (294, 43430), (301, 42420), (303, 42140), (404, 31605), (420, 30401), (430, 29694), (490, 26058), (505, 25284), (516, 24745), (588, 21715), (602, 21210), (606, 21070), (645, 19796), (707, 18060), (735, 17372), (860, 14847), (903, 14140), (980, 13029), (1010, 12642), (1204, 10605), (1212, 10535), (1290, 9898), (1414, 9030), (1470, 8686), (1505, 8484), (1515, 8428), (1806, 7070), (2020, 6321), (2107, 6060), (2121, 6020), (2580, 4949), (2828, 4515), (2940, 4343), (3010, 4242), (3030, 4214), (3535, 3612)]