19657380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2357}}^1$

素因数の和:2508

約数の個数: 48

約数和(自身を含む): 55460160

約数和(自身を除く): 35802780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2357, 2780, 4170, 4714, 7071, 8340, 9428, 11785, 14142, 23570, 28284, 35355, 47140, 70710, 141420, 327623, 655246, 982869, 1310492, 1638115, 1965738, 3276230, 3931476, 4914345, 6552460, 9828690, 19657380]

約数ペア:

[(1, 19657380), (2, 9828690), (3, 6552460), (4, 4914345), (5, 3931476), (6, 3276230), (10, 1965738), (12, 1638115), (15, 1310492), (20, 982869), (30, 655246), (60, 327623), (139, 141420), (278, 70710), (417, 47140), (556, 35355), (695, 28284), (834, 23570), (1390, 14142), (1668, 11785), (2085, 9428), (2357, 8340), (2780, 7071), (4170, 4714)]