13291720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25561}}^1$

素因数の和:25585

約数の個数: 32

約数和(自身を含む): 32208120

約数和(自身を除く): 18916400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 25561, 51122, 102244, 127805, 204488, 255610, 332293, 511220, 664586, 1022440, 1329172, 1661465, 2658344, 3322930, 6645860, 13291720]

約数ペア:

[(1, 13291720), (2, 6645860), (4, 3322930), (5, 2658344), (8, 1661465), (10, 1329172), (13, 1022440), (20, 664586), (26, 511220), (40, 332293), (52, 255610), (65, 204488), (104, 127805), (130, 102244), (260, 51122), (520, 25561)]