210938140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:444

約数の個数: 96

約数和(自身を含む): 523555200

約数和(自身を除く): 312617060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 140, 194, 196, 245, 317, 343, 388, 485, 490, 634, 679, 686, 970, 980, 1268, 1358, 1372, 1585, 1715, 1940, 2219, 2716, 3170, 3395, 3430, 4438, 4753, 6340, 6790, 6860, 8876, 9506, 11095, 13580, 15533, 19012, 22190, 23765, 30749, 31066, 33271, 44380, 47530, 61498, 62132, 66542, 77665, 95060, 108731, 122996, 133084, 153745, 155330, 166355, 215243, 217462, 307490, 310660, 332710, 430486, 434924, 543655, 614980, 665420, 860972, 1076215, 1087310, 1506701, 2152430, 2174620, 3013402, 4304860, 6026804, 7533505, 10546907, 15067010, 21093814, 30134020, 42187628, 52734535, 105469070, 210938140]

約数ペア:

[(1, 210938140), (2, 105469070), (4, 52734535), (5, 42187628), (7, 30134020), (10, 21093814), (14, 15067010), (20, 10546907), (28, 7533505), (35, 6026804), (49, 4304860), (70, 3013402), (97, 2174620), (98, 2152430), (140, 1506701), (194, 1087310), (196, 1076215), (245, 860972), (317, 665420), (343, 614980), (388, 543655), (485, 434924), (490, 430486), (634, 332710), (679, 310660), (686, 307490), (970, 217462), (980, 215243), (1268, 166355), (1358, 155330), (1372, 153745), (1585, 133084), (1715, 122996), (1940, 108731), (2219, 95060), (2716, 77665), (3170, 66542), (3395, 62132), (3430, 61498), (4438, 47530), (4753, 44380), (6340, 33271), (6790, 31066), (6860, 30749), (8876, 23765), (9506, 22190), (11095, 19012), (13580, 15533)]