127952240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123031}}^1$

素因数の和:123057

約数の個数: 40

約数和(自身を含む): 320375328

約数和(自身を除く): 192423088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 123031, 246062, 492124, 615155, 984248, 1230310, 1599403, 1968496, 2460620, 3198806, 4921240, 6397612, 7997015, 9842480, 12795224, 15994030, 25590448, 31988060, 63976120, 127952240]

約数ペア:

[(1, 127952240), (2, 63976120), (4, 31988060), (5, 25590448), (8, 15994030), (10, 12795224), (13, 9842480), (16, 7997015), (20, 6397612), (26, 4921240), (40, 3198806), (52, 2460620), (65, 1968496), (80, 1599403), (104, 1230310), (130, 984248), (208, 615155), (260, 492124), (520, 246062), (1040, 123031)]