271152740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1\times {\mathrm{439}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 578793600

約数和(自身を除く): 307640860

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 347, 356, 439, 445, 694, 878, 890, 1388, 1735, 1756, 1780, 2195, 3470, 4390, 6940, 8780, 30883, 39071, 61766, 78142, 123532, 152333, 154415, 156284, 195355, 304666, 308830, 390710, 609332, 617660, 761665, 781420, 1523330, 3046660, 13557637, 27115274, 54230548, 67788185, 135576370, 271152740]

約数ペア:

[(1, 271152740), (2, 135576370), (4, 67788185), (5, 54230548), (10, 27115274), (20, 13557637), (89, 3046660), (178, 1523330), (347, 781420), (356, 761665), (439, 617660), (445, 609332), (694, 390710), (878, 308830), (890, 304666), (1388, 195355), (1735, 156284), (1756, 154415), (1780, 152333), (2195, 123532), (3470, 78142), (4390, 61766), (6940, 39071), (8780, 30883)]