1980087060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{673499}}^1$

素因数の和:673525

約数の個数: 72

約数和(自身を含む): 6449436000

約数和(自身を除く): 4469348940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 673499, 1346998, 2020497, 2693996, 3367495, 4040994, 4714493, 6734990, 8081988, 9428986, 10102485, 13469980, 14143479, 18857972, 20204970, 23572465, 28286958, 33001451, 40409940, 47144930, 56573916, 66002902, 70717395, 94289860, 99004353, 132005804, 141434790, 165007255, 198008706, 282869580, 330014510, 396017412, 495021765, 660029020, 990043530, 1980087060]

約数ペア:

[(1, 1980087060), (2, 990043530), (3, 660029020), (4, 495021765), (5, 396017412), (6, 330014510), (7, 282869580), (10, 198008706), (12, 165007255), (14, 141434790), (15, 132005804), (20, 99004353), (21, 94289860), (28, 70717395), (30, 66002902), (35, 56573916), (42, 47144930), (49, 40409940), (60, 33001451), (70, 28286958), (84, 23572465), (98, 20204970), (105, 18857972), (140, 14143479), (147, 13469980), (196, 10102485), (210, 9428986), (245, 8081988), (294, 6734990), (420, 4714493), (490, 4040994), (588, 3367495), (735, 2693996), (980, 2020497), (1470, 1346998), (2940, 673499)]