31464860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 77891184

約数和(自身を除く): 46426324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 140, 194, 196, 245, 331, 388, 485, 490, 662, 679, 970, 980, 1324, 1358, 1655, 1940, 2317, 2716, 3310, 3395, 4634, 4753, 6620, 6790, 9268, 9506, 11585, 13580, 16219, 19012, 23170, 23765, 32107, 32438, 46340, 47530, 64214, 64876, 81095, 95060, 128428, 160535, 162190, 224749, 321070, 324380, 449498, 642140, 898996, 1123745, 1573243, 2247490, 3146486, 4494980, 6292972, 7866215, 15732430, 31464860]

約数ペア:

[(1, 31464860), (2, 15732430), (4, 7866215), (5, 6292972), (7, 4494980), (10, 3146486), (14, 2247490), (20, 1573243), (28, 1123745), (35, 898996), (49, 642140), (70, 449498), (97, 324380), (98, 321070), (140, 224749), (194, 162190), (196, 160535), (245, 128428), (331, 95060), (388, 81095), (485, 64876), (490, 64214), (662, 47530), (679, 46340), (970, 32438), (980, 32107), (1324, 23765), (1358, 23170), (1655, 19012), (1940, 16219), (2317, 13580), (2716, 11585), (3310, 9506), (3395, 9268), (4634, 6790), (4753, 6620)]