80121340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18127}}^1$

素因数の和:18166

約数の個数: 48

約数和(自身を含む): 191866752

約数和(自身を除く): 111745412

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, 18127, 36254, 72508, 90635, 181270, 235651, 308159, 362540, 471302, 616318, 942604, 1178255, 1232636, 1540795, 2356510, 3081590, 4006067, 4713020, 6163180, 8012134, 16024268, 20030335, 40060670, 80121340]

約数ペア:

[(1, 80121340), (2, 40060670), (4, 20030335), (5, 16024268), (10, 8012134), (13, 6163180), (17, 4713020), (20, 4006067), (26, 3081590), (34, 2356510), (52, 1540795), (65, 1232636), (68, 1178255), (85, 942604), (130, 616318), (170, 471302), (221, 362540), (260, 308159), (340, 235651), (442, 181270), (884, 90635), (1105, 72508), (2210, 36254), (4420, 18127)]