20605020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20201}}^1$

素因数の和:20230

約数の個数: 48

約数和(自身を含む): 61090848

約数和(自身を除く): 40485828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20201, 40402, 60603, 80804, 101005, 121206, 202010, 242412, 303015, 343417, 404020, 606030, 686834, 1030251, 1212060, 1373668, 1717085, 2060502, 3434170, 4121004, 5151255, 6868340, 10302510, 20605020]

約数ペア:

[(1, 20605020), (2, 10302510), (3, 6868340), (4, 5151255), (5, 4121004), (6, 3434170), (10, 2060502), (12, 1717085), (15, 1373668), (17, 1212060), (20, 1030251), (30, 686834), (34, 606030), (51, 404020), (60, 343417), (68, 303015), (85, 242412), (102, 202010), (170, 121206), (204, 101005), (255, 80804), (340, 60603), (510, 40402), (1020, 20201)]