1285986380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{30517}}^1$

素因数の和:30583

約数の個数: 72

約数和(自身を含む): 3214644048

約数和(自身を除く): 1928657668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 4214, 6020, 8428, 10535, 21070, 30517, 42140, 61034, 122068, 152585, 213619, 305170, 427238, 610340, 854476, 1068095, 1312231, 1495333, 2136190, 2624462, 2990666, 4272380, 5248924, 5981332, 6561155, 7476665, 9185617, 13122310, 14953330, 18371234, 26244620, 29906660, 36742468, 45928085, 64299319, 91856170, 128598638, 183712340, 257197276, 321496595, 642993190, 1285986380]

約数ペア:

[(1, 1285986380), (2, 642993190), (4, 321496595), (5, 257197276), (7, 183712340), (10, 128598638), (14, 91856170), (20, 64299319), (28, 45928085), (35, 36742468), (43, 29906660), (49, 26244620), (70, 18371234), (86, 14953330), (98, 13122310), (140, 9185617), (172, 7476665), (196, 6561155), (215, 5981332), (245, 5248924), (301, 4272380), (430, 2990666), (490, 2624462), (602, 2136190), (860, 1495333), (980, 1312231), (1204, 1068095), (1505, 854476), (2107, 610340), (3010, 427238), (4214, 305170), (6020, 213619), (8428, 152585), (10535, 122068), (21070, 61034), (30517, 42140)]