138091720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{265561}}^1$

素因数の和:265585

約数の個数: 32

約数和(自身を含む): 334608120

約数和(自身を除く): 196516400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 265561, 531122, 1062244, 1327805, 2124488, 2655610, 3452293, 5311220, 6904586, 10622440, 13809172, 17261465, 27618344, 34522930, 69045860, 138091720]

約数ペア:

[(1, 138091720), (2, 69045860), (4, 34522930), (5, 27618344), (8, 17261465), (10, 13809172), (13, 10622440), (20, 6904586), (26, 5311220), (40, 3452293), (52, 2655610), (65, 2124488), (104, 1327805), (130, 1062244), (260, 531122), (520, 265561)]