72280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:163

約数の個数: 32

約数和(自身を含む): 176400

約数和(自身を除く): 104120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 695, 1112, 1390, 1807, 2780, 3614, 5560, 7228, 9035, 14456, 18070, 36140, 72280]

約数ペア:

[(1, 72280), (2, 36140), (4, 18070), (5, 14456), (8, 9035), (10, 7228), (13, 5560), (20, 3614), (26, 2780), (40, 1807), (52, 1390), (65, 1112), (104, 695), (130, 556), (139, 520), (260, 278)]