15208538420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1\times {\mathrm{36017}}^1$

素因数の和:36560

約数の個数: 48

約数和(自身を含む): 32748141888

約数和(自身を除く): 17539603468

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 491, 860, 982, 1964, 2455, 4910, 9820, 21113, 36017, 42226, 72034, 84452, 105565, 144068, 180085, 211130, 360170, 422260, 720340, 1548731, 3097462, 6194924, 7743655, 15487310, 17684347, 30974620, 35368694, 70737388, 88421735, 176843470, 353686940, 760426921, 1520853842, 3041707684, 3802134605, 7604269210, 15208538420]

約数ペア:

[(1, 15208538420), (2, 7604269210), (4, 3802134605), (5, 3041707684), (10, 1520853842), (20, 760426921), (43, 353686940), (86, 176843470), (172, 88421735), (215, 70737388), (430, 35368694), (491, 30974620), (860, 17684347), (982, 15487310), (1964, 7743655), (2455, 6194924), (4910, 3097462), (9820, 1548731), (21113, 720340), (36017, 422260), (42226, 360170), (72034, 211130), (84452, 180085), (105565, 144068)]