15623620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 34550208

約数和(自身を除く): 18926588

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 86, 148, 172, 185, 215, 370, 430, 491, 740, 860, 982, 1591, 1964, 2455, 3182, 4910, 6364, 7955, 9820, 15910, 18167, 21113, 31820, 36334, 42226, 72668, 84452, 90835, 105565, 181670, 211130, 363340, 422260, 781181, 1562362, 3124724, 3905905, 7811810, 15623620]

約数ペア:

[(1, 15623620), (2, 7811810), (4, 3905905), (5, 3124724), (10, 1562362), (20, 781181), (37, 422260), (43, 363340), (74, 211130), (86, 181670), (148, 105565), (172, 90835), (185, 84452), (215, 72668), (370, 42226), (430, 36334), (491, 31820), (740, 21113), (860, 18167), (982, 15910), (1591, 9820), (1964, 7955), (2455, 6364), (3182, 4910)]