81718260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8059}}^1$

素因数の和:8097

約数の個数: 72

約数和(自身を含む): 247796640

約数和(自身を除く): 166078380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 8059, 10140, 16118, 24177, 32236, 40295, 48354, 80590, 96708, 104767, 120885, 161180, 209534, 241770, 314301, 419068, 483540, 523835, 628602, 1047670, 1257204, 1361971, 1571505, 2095340, 2723942, 3143010, 4085913, 5447884, 6286020, 6809855, 8171826, 13619710, 16343652, 20429565, 27239420, 40859130, 81718260]

約数ペア:

[(1, 81718260), (2, 40859130), (3, 27239420), (4, 20429565), (5, 16343652), (6, 13619710), (10, 8171826), (12, 6809855), (13, 6286020), (15, 5447884), (20, 4085913), (26, 3143010), (30, 2723942), (39, 2095340), (52, 1571505), (60, 1361971), (65, 1257204), (78, 1047670), (130, 628602), (156, 523835), (169, 483540), (195, 419068), (260, 314301), (338, 241770), (390, 209534), (507, 161180), (676, 120885), (780, 104767), (845, 96708), (1014, 80590), (1690, 48354), (2028, 40295), (2535, 32236), (3380, 24177), (5070, 16118), (8059, 10140)]