421890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{41}}^1$

素因数の和:72

約数の個数: 64

約数和(自身を含む): 1209600

約数和(自身を除く): 787710

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 42, 49, 70, 82, 98, 105, 123, 147, 205, 210, 245, 246, 287, 294, 343, 410, 490, 574, 615, 686, 735, 861, 1029, 1230, 1435, 1470, 1715, 1722, 2009, 2058, 2870, 3430, 4018, 4305, 5145, 6027, 8610, 10045, 10290, 12054, 14063, 20090, 28126, 30135, 42189, 60270, 70315, 84378, 140630, 210945, 421890]

約数ペア:

[(1, 421890), (2, 210945), (3, 140630), (5, 84378), (6, 70315), (7, 60270), (10, 42189), (14, 30135), (15, 28126), (21, 20090), (30, 14063), (35, 12054), (41, 10290), (42, 10045), (49, 8610), (70, 6027), (82, 5145), (98, 4305), (105, 4018), (123, 3430), (147, 2870), (205, 2058), (210, 2009), (245, 1722), (246, 1715), (287, 1470), (294, 1435), (343, 1230), (410, 1029), (490, 861), (574, 735), (615, 686)]