20149100860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{89783}}^1$

素因数の和:90035

約数の個数: 72

約数和(自身を含む): 49436866080

約数和(自身を除く): 29287765220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 229, 245, 458, 490, 916, 980, 1145, 1603, 2290, 3206, 4580, 6412, 8015, 11221, 16030, 22442, 32060, 44884, 56105, 89783, 112210, 179566, 224420, 359132, 448915, 628481, 897830, 1256962, 1795660, 2513924, 3142405, 4399367, 6284810, 8798734, 12569620, 17597468, 20560307, 21996835, 41120614, 43993670, 82241228, 87987340, 102801535, 143922149, 205603070, 287844298, 411206140, 575688596, 719610745, 1007455043, 1439221490, 2014910086, 2878442980, 4029820172, 5037275215, 10074550430, 20149100860]

約数ペア:

[(1, 20149100860), (2, 10074550430), (4, 5037275215), (5, 4029820172), (7, 2878442980), (10, 2014910086), (14, 1439221490), (20, 1007455043), (28, 719610745), (35, 575688596), (49, 411206140), (70, 287844298), (98, 205603070), (140, 143922149), (196, 102801535), (229, 87987340), (245, 82241228), (458, 43993670), (490, 41120614), (916, 21996835), (980, 20560307), (1145, 17597468), (1603, 12569620), (2290, 8798734), (3206, 6284810), (4580, 4399367), (6412, 3142405), (8015, 2513924), (11221, 1795660), (16030, 1256962), (22442, 897830), (32060, 628481), (44884, 448915), (56105, 359132), (89783, 224420), (112210, 179566)]