306885020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{69431}}^1$

素因数の和:69470

約数の個数: 48

約数和(自身を含む): 734868288

約数和(自身を除く): 427983268

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 69431, 138862, 277724, 347155, 694310, 902603, 1180327, 1388620, 1805206, 2360654, 3610412, 4513015, 4721308, 5901635, 9026030, 11803270, 15344251, 18052060, 23606540, 30688502, 61377004, 76721255, 153442510, 306885020]

約数ペア:

[(1, 306885020), (2, 153442510), (4, 76721255), (5, 61377004), (10, 30688502), (13, 23606540), (17, 18052060), (20, 15344251), (26, 11803270), (34, 9026030), (52, 5901635), (65, 4721308), (68, 4513015), (85, 3610412), (130, 2360654), (170, 1805206), (221, 1388620), (260, 1180327), (340, 902603), (442, 694310), (884, 347155), (1105, 277724), (2210, 138862), (4420, 69431)]